TW307840B - - Google Patents

Description

3〇784〇 * at ____ B7 V. Description of the invention (1) The technical field of the present invention The present invention relates to a data processing system and a network. More specifically, the present invention relates to a method and system for accessing distributed heterogeneous information sources and databases. Background of the Invention Due to advances in modern computer technology, and due to the widespread use of low-paid multimedia production and office automation software packages, the ability to generate information has been greatly improved. As a result, the capacity, diversity, and quantity of the information library have naturally increased. Therefore, a large amount of information has accumulated in companies, government agencies, and universities. Due to the advancement of data communication technology and electric network technology, much of this information is stored in the information database on the network, and any user connected to these networks by a computer can access this information. However, this information is heterogeneous, that is, it is stored in many different forms and notations. Printed in this environment by the Employee Consumer Cooperative of the Central Bureau of Economic Development of the Ministry of Economy 'Database Query Language Program' and the different connection and retrieval procedures used to connect and retrieve this information. Therefore, knowledge workers spend too much time connecting and retrieving the required information. Often because of obstacles in accessing information through a connection, knowledge workers may abandon the effort to access information through a connection and regenerate the same information in another information field in a different way. These problems that occur when accessing heterogeneous information reduce the productivity of individuals and organizations, thus increasing the cost of operations. "In order to solve these problems, industry experts have tried to establish a uniform paper standard applicable to the Chinese National Standard (CNS ) A4 specification (210X 297mm) 3〇784〇Λ7 I one -____ B7 Printed by the Central Sample Bureau of the Ministry of Economic Affairs Beigong Consumer Cooperative. V. Invention description (2) -type information database, the method is based on some The heart place is rearranged in some bare quasi format and reformats the original information. This method must design and maintain an increasing number of format converters that are constantly changing. In addition, when converting information for the first time, it usually requires a lot of manpower and computer resources. In addition, the maintenance of the information database needs to generate new information and update information in the same format ’or need to continue to manage the constantly changing data in different formats. These methods not only require a lot of resources, but because these methods are based on a centralized system management model, these methods are characterized by the inherent performance, management, and reliability bottlenecks of the centralized system. Another problem arising from the conventional technology is that only certain types of information can use sophisticated indexing and searching techniques, or such techniques are implemented in the Zhuyi application and therefore cannot be applied to other types of information, that is, This type of technology is part of a closed system. Therefore, on a network with heterogeneous information, in order to process different types of information, users must cope with a variety of indexing and search technologies developed and applied in various special ways, thus causing a great burden on users. The recent development of this technology that allows users to easily access information from various resources is the development of the World Wide Web on the Internet. Users use Hypertext Transfer Protocol (Hypertext Transfer Protocol; HTTP for short) browsers to connect to the HTTP server, so they can use many information sources in close proximity. The information that can be retrieved is a text file formatted using Hypertext Markup Language (HTML). These HTML files not only provide text information to users, but also embed ring, audio, video, or text in the text (please read the note 4 on the back first to write this page) HI In κ 1 ^ 1 nn- ----- il _ loaded ·, ^ τ The size of the line paper is suitable for China National Falcon (CNS) A4 specification (2 丨 0X297mm)

A7 BJ Printed by the Consumer Cooperation of the Central Bureau of Economic Development of the Ministry of Economic Affairs V. Invention Description (3) Indicators of other sources of information. Most browsers available on the market (such as Mosaic, Netscape, etc.) include some tool programs that can display information in the form of text or text. However, in order to display such information, it must be converted into HTML broadcast. However, there is a huge amount of inherited information on the network, so if there is a device that can use the information without the owner or provider of the information converting the information into an HTML file, the user will be able to Use this information. Therefore, this technology needs a system and method that allows users to access a large amount of heterogeneous information in an integrated manner, and in this system and method, the end user does not need to know the type, format, or Location, and the owner or provider of the information does not have the burden of having to convert, reconfigure, or reformat the information. " , And the end user does not need to know the type, format, or location of the information. Another object of the present invention is that the owner of the information has no burden of having to convert, reconfigure, or reformat the information. The present invention can accomplish the above-mentioned objects, and enables the advancement of this technology. The present invention is a system and method for integrating heterogeneous information into a decentralized environment. The method is to encapsulate data about existing and new information in objects without the need to convert, reconstruct, or reformat such information. The process of encapsulating information needs to select the information from metadata. The database is generated from the meta-information department. Its i1 meta-data is divided into several objects, and each object group is combined into several collections on the basis of operations. The database of such objects and collections is applicable to China National Bare Standard (CNS) A4 specification (210X 297mm) by this paper standard (please read the precautions on the back first b from writing this page) -installed · * · ιτ —__ BJ_ 一 五 、 Description of invention (4) Put into a server's runtime memory skeleton as a representative, and is organized into an information library of objects and collections. The user who wants to access the information uses a browser compatible with the HTTP to connect with the browser, and access the information through the objects generated and stored in the server. Yi invention provides a method for reading in an integrated manner and accessing various heterogeneous information. Yifa also provides some tools to use, retrieve, browse, and manage information. Brief description of attached circle Circle 1 shows a system according to an embodiment of the present invention. FIG. 2 shows a method of preprocessing information units according to an embodiment of the present invention. Circle 3 shows a method for accessing heterogeneous information according to an embodiment of the invention. Fig. 4 (a) shows the format of the metadata used in the embodiment of the present invention a. Circle 4 (b) shows the definition table of the metadata field used in the metadata format of the embodiment of the present invention. Circle 5 shows the format of an object identification code embodiment used in the present invention. Circle 6 shows an ihMeta object attribute definition table. FIG. 7 shows the category inheritance B of the i h Artifac category (cUss) family defined in the embodiment of the present invention. FIG. 8 is an ihArtifact category table used in an embodiment of the present invention. 889 is the ih Artifact sub-class definition table β used in the embodiment of the present invention. FIG. 10 is the ihGraph class definition table used in the embodiment of the present invention. S11 shows the relationship between the modules in each execution time operating in the server according to the present invention. 7- The size of the paper is applicable to the Chinese National Standard (CNS). Μ specifications (2 0X297 mm) 3078 ^ 0 Μ B7 5. Description of the invention (5) FIG. 12 shows an example interactive circle of operations according to an embodiment of the present invention. 13 shows the in-prep program, extractor, and indexer according to the present invention. Circle 14 tf shows the procedure for performing metadata context query according to the embodiment of the present invention. Circle 1: > No procedure for inquiring information content according to the poor embodiment of the present invention. Circle 16tf shows the procedure for calling a server-side browser according to an embodiment of the present invention. Circle 17 shows the procedure for calling a client browser according to the implementation of the present invention. Detailed Description Γ Hereinafter, a preferred embodiment of the present invention will be described with reference to each attached ring. It will be printed under the implementation name InfoHarnessTM (Inf〇 Harness is the assignee of the present invention, Ben C〇mmunicati〇n Researeh, Ministry of Economic Affairs, Central Bureau of Standards, Unemployed Consumer Cooperative

Inc _) 's trademark) The method of the body and the system product illustrates this embodiment 3 of the invention. The description of the invention is now organized into six parts. First, we want to define the term β that will be used throughout the specification We will explain the system and method of the present invention in a high-level overview. Third, we detail the procedures for metadata preparation. In the fourth part, we will explain the operation of a gateway, which is necessary to connect the Hττρ server to the Inf〇 Harness server in this embodiment, in the present invention The procedure for making the gateway into an independent operation is not important, but in other embodiments, the gateway can be embedded in the server. In the fifth part, we will explain the InfoHarness server operating according to the present invention The homework β is finally in this paper standard suitable for Caijia County (⑽) ~ Lin (21Gx 297mm)

BJ 5. Description of the invention (6) In the sixth part, we will explain the interaction between the spare parts of the system of the invention. These descriptions are only examples of the present invention. The present invention is not limited to the embodiments described above, but other embodiments can be used to implement the present invention. A. Definition Information unit (information unit) or I U is a piece of information that the end user may care about. The most common type of IU is a document in which germanium is stored in a single file. An IU can also represent part of a file (such as a single function written in C in a large original .M file, or a single e-mail message in an e-mail file, etc.) 'consisting of many files Group of files, or other kinds of information. Metabase (Metabase) is a file or database of meta-information departments selected from various information units and organized into a number of InfoHarness objects and collections. Metadata is " data describing data ", that is, metadata is data describing various prominent features of some other data. For example, the metadata related to the patent specification may include the filing date of the patent, the name of the inventor, and a summary of keywords3

The InfoHarness object or I Η Ο is an envelope of the information unit used by Jft using the system of the present invention. An IHO envelope is used to describe the metadata of a salient feature. A collection printed by the Employee Consumer Cooperative of the Central Falcon Bureau of the Ministry of Economic Affairs represents a group of IHOs. The collection is logically green; that is, the information units encapsulated by each component IHO need not physically exist in the same directory at the same time. The encapsulated files can be distributed in many systems on a network. In addition, IHO can be a component of more than one set. Collections can be nested, that is, a collection contains other collections. -9- Apparel paper size is applicable to China National Falcon (CNS) A4 specification U! 〇: < 297 male sewing) Printed by the Ministry of Economic Affairs Employee Consumer Cooperative Α7 Β7 5. Invention description (7) Collection is also possible Is indexed or non-indexed (for example, collections are processed to allow content search so 'collections provide a logical way to view heterogeneous information that is physically dispersed across various locations. Information repository (repositoryj ^: multiple collections. Can be accessed through The InfoHarness server operating in accordance with the present invention accesses an itchy content. A gateway is an integral part of an embodiment of the present invention. The gateway provides a method that can be familiar to those skilled in the art Common Gateway Interface (Common Gateway Interface; CGI for short) specification to connect a Hyper File Transfer Protocol (HTTP) server to an lnHarness server.

The InfoHarness Server (InfoHarness Server: 1H server for short) is a server that operates according to the present invention. Β. Overview One embodiment of the present invention is shown in FIG. The system 10 of the present invention is placed between a plurality of end users (1 2) who want to access heterogeneous information (1 4) composed of a plurality of IUs (16). In the embodiment of the present invention, these end users (12) connect to an HTTP server (20) using a browser (18) that conforms to HTTP, and the HTTP server (20) connects again To an I Η server (2 2). Within the I η server (22) represented in the memory, there is an information library (24) of ΙΗΟ (26) and collection (28). Use the metadata selected from each (丨 6) and store in a database to generate one of these I Η Ο and one of the collection database (30), and use this database (30) to generate the information database (24) . The user (1 2) connected to the ΙΗ server (2 2) can then use any user-defined criteria to obtain ϊ ΗΟ, metadata -10 * This paper standard is applicable to the Chinese National Standard (CNS) Λ4 specification (2! 〇 Χ 297 公 1) --1 --- ^ ----- installed ------ ordered ------ ^ ^ J. (Please read the precautions on the back before filling this page) Ministry of Economic Affairs Printed by the Central Bureau of Standards, Consumer Cooperatives 307840

AT ____ 5. Description of the invention (8) ~, or search for collections to retrieve target information from the ILJ (1δ). The method of the present invention is composed of two phases. Phase I is the registration phase. In the green phase F, each I LI is pre-processed, and each 1HO, collection, and information library are generated. Phase 2 is information retrieval Use stage 'In this stage, the end user connects to the [η servo eye server via the H TTP server, and utilizes it generated and loaded during the recording stage! Each of the memory of the Η server [Η 〇 find and access each IU. Figure 2 shows the method implemented during the recording phase. The information provider or knows how the information provider wants the user to be able to use it

The IntoHarness manager will call an inf〇Harness green program (body) and record each information unit (30). When calling infHarness recording procedures, the administrator will first call a preprocessor (32) to prepare information for selecting procedures. The next step is for the manager to call one of the multiple selection procedures (3 3) in order to select metadata from each recorded information unit (the appropriate selection procedure depends on the type of information recorded by the manager) ^ The output of the selection process is to generate an IHO (34) meta-database (the meta-database is-a file or a database). This meta-database contains: the meta-data of each information unit that was collected on the late compilation, information about each 111 and collection, and the relationship between the two. After generating the metabase, the recording phase is completed. FIG. 3 shows the method of accessing information according to the present invention. First, the Η Η server must be started, and then each η 〇 will be loaded from the metadata database into the memory of the server 'and these IΗ Ο will be organized into an information database (3 6) 'After the server is started and executed, the IΗ server enters a main event loop and waits for each user -11- This paper standard applies to China National Standards (CNS) Α4 specification (· ι〇χ297 fy --.--- γ --- CI outfit ------ order ------ Γ (please read the precautions on the back before filling this page) A7 Employee Consumer Cooperative of Central Falcon Bureau Printed ____ B7 V. Description of the invention (9) Requirements of the terminal (38). The end user then connects to the IH server via an HTTP server (40). Once the end user connects to the iH server Device, you can perform one of the following three actions to select an object (42): (1) metadata-based query, (2) content-based query, or (3) directly control Ϊ4some IHO ^-once After selecting a good object, you can start a client browser (44) or server browser (46), and obtain and browse Information. Users can also operate on objects selected from a set of procedures such as printing, storage, transmission, etc. C. Recording procedure-As mentioned above, the greening procedure involves the owner, generator, or The provider and the system administrator working together process the information in advance, so that the metadata can be selected in a format that can be used by the IH server of the present invention. The greening process is completed in the following four steps: preprocessing the physical data, selecting metadata, Store metadata in a metadata database and transfer the selected metadata from the metadata database to the IH server. The main function of pre-processing is to process real data and create a 〖H server that can be used to provide in the future. The logical structure (ΙΗ〇 and collections) for the end user. In this sense, the physical entity includes formatted, unformatted, structured, and unstructured data. Shiya data can also be dynamic For example, SQL query or news feed. The metadata selected according to the above method may be related to public content, describing content, or content and content. The content-related metadata is completely based on the content of the physical data. Examples of content-related metadata include the keyword index of text data, the coordinate grid of image data, and the speech of audio data. 12- (CNS) A4 specification (2 丨 5 ^ " ^ 97 公 ^ ~] " {please write the note on the back of Mt ** first.). Install · Strand A7

______ BJ V. Description of invention (i〇) Change table, etc. As disclosed by the name "Description of Content", the physical content of this metadata description data actually includes spatial information of video data, conversational topics of audio data, document construction of multimedia data, etc. Irrelevant metadata does not depend on the specific content of the underlying data as its value. Media type, document history and location, video and audio time information, etc. are all examples of metadata independent of the content On the-access from the floor case. So it usually means: the data must be on the same local area network, but if multiple file servers can be accessed directly, such as through a Network File Server (NFS), the data can also be stored in these Stop the case in the feeder. Relevant materials scattered on the entity are usually gathered in the same logical structure ’and the logical structure is placed on the bottom of the physical information department. The mesh structure is an example of a logical structure. Most file systems usually have this mesh structure. In addition, the system administrators working together with the InfoHarness application creator may decide to use it; ^ May be interested in the relationship between the standby set and the IHO. For example, the parent-child relation ship between two sets can be adopted. The other relationships that can be modeled are: "Contains," is included in the "quote", and "•" sections. "The final result of the pre-processing and metadata selection printed by the Ministry of Economic Affairs Central Standards Consumer Labor Cooperatives is generated. Meta-database containing meta-information department, IHO and collection (the meta-database can be-building plan or database as mentioned above, when this information is loaded from the meta-database into an IH server, this information is coming It is embodied as IHO and collection in server memory organized into several information bases. In the present invention, we apply the Chinese National Standard (CNS) A4 regulations S07840 A7 B7_ __- for various paper standards. Description (11) The file data type uses different selection procedures. It is easy to use the techniques known in this technology to generate these selection procedures, for example, 'we use the selector for text files, PostScript files, HT TML files, The man pages file and the e-mail message file β-I Η Ο encapsulate a single! υ. A set does not encapsulate any IU, but the set is a group of other ΙΗΟ or The set ° an ΙΗΟ that encapsulates an IU will thus have a unique identification code that distinguishes each ΗΟ from each other. The set is a group of IHOs that are related to each other in a manner determined by the system administrator of the InfoHarness application creator. In the embodiment described in the present invention, 'is made up of a number of Uni? In a general subdirectory called the collection name. {File represents a collection. This collection directory contains several important files. IH— SUMMARY file-this file Contains some meta-information related to the collection itself, such as where the index (if any) is located, and the name of the collection's metadata, etc. The metadata file is discarded--that is, a meta contained in the recording process is selected Data file = index file-depending on the index structure used, there can be one or more index files. The following virtual codes can be used to summarize the metadata selection process of the present invention. Printed by the Ministry of Economic Affairs Central Standards Bureau Install 1. Confirm the option of the selection process provided by the user. 2_ For each item to be traced, for each file that is eligible to be selected, call the selection process. Send back metadata, -14- This paper scale is applicable to China National Standard Falcon (CNS) A4 specification (210X297 Gongqing) V. Description of invention (u) Text selected in the technical set 3. If required, select by index Text. Pre-processing includes: self-financed information sources to select the meta-funding section; generation of slash, = two and relational representation; and optional text source and index for information sources. In this embodiment, "poor body information comes green It should exist in the same rights system as the preprocessor and indexer. Metadata is also stored in the file system at a location specified by the administrator. The preprocessor uses the selector method to select from real sources of information "Metadata" These methods are related to specific types; ^^ customs related methods, such formats deal with information sources and the return of the MGC. In the present invention, the preprocessor does not analyze the type of information source and calls a selector system administrator of the server 1 instead to indicate a specific selector that will be used for the UGC selection. The preprocessor treats all the generated IH〇s as a set element. A location specified by the user is used to store the generated metadata file. Users can choose to add the newly generated metadata to an existing collection. The user printed by the Beigong Consumer Cooperative of the Central Standard Falcon Bureau of the Ministry of Economic Affairs can also indicate whether the resulting collection should have a text index built for it, and if so, the indexing technology used for this purpose . The indexing technology itself is not part of the invention. However, the architecture of the present invention allows the use of various indexing techniques in a ready-to-install manner. Examples of indexing technologies are WAIS and GLIMPSE »If an index is generated, the index is installed in the same target green as the metadata file. At the same time, a cross-reference case has also been created to transfer the index database objects to Shaanxi to IHO »If indexing technology is not used, the resulting collection will be regarded as -15- This paper scale is applicable to China National Standard (CNS) A4 Specifications (210X297mm) 1. ___ B7 5. Description of the invention (13) sets. A typical selector uses the location of the information source to be encapsulated as input. The selector returns a formatted information string, and the preprocessor interprets the information string to generate a number of meta-information greens that will be stored in the meta-information file. The metadata file itself has a well-defined format, which will be described in detail below. The selector also selects the text associated with the generated IHO. For example, in order to select text from a " C, " file, the C case must be parsed in order to identify the descriptive information of comments and functions, because it is usually meaningless to add language constructs and variable names to the index. In this case, an Ιϋ associates a function or file as a whole ^ and also selects representative information and associates this information with the IIJ. The representative information will be displayed to the user when browsing; for example, for e-mail messages, the subject line is used as representative information, and for HTML documents, the content constructed by TITLE is used as representative information. The Ministry of Economic Affairs Central Standard Falcon Bureau Employee Consumer Cooperative Printing Department transfers metadata from the selector in a format called metadata transfer format. This format (per 丨 data structure) has some structures. Any country-shaped structure can be added to each H0 (such as the mother-child relationship between sets). The object type and subtype are related to each I U, and the object type and subtype are determined by the selection process. Finally, the location attribute is also determined by the selector (that is, used to find one of the locations in the file system). For the case where the I u system is associated with the entire file, this location attribute may be the full path of a UNIX file. The location attribute can also be a uniform resource locator (Uniform Resource Locator; referred to as U R L, which has the same meaning as in the World Wide Web), or some other locator.备 16- This paper scale is applicable to China National Standard (CNS) A4 (2 丨 0: < 297mm) A? ΒΊ Ministry of Economic Affairs, Central Standard Falcon Bureau Employee Consumer Cooperative Institution V. Invention description (14) URL system Used for HTML files. On the other hand, the location of the "c" function can be specified as "filename% function_name". There is no requirement for a clear format for this locator, as long as the browsing method can shoot the locator's code You only need to obtain the original data associated with the IU. In addition, any number of attribute_direct pairs can be associated with the IU, for example, the attribute name associated with an IU will include the representative information selected by the selector For each 1 η Ο that does not contain I u, any text can be assigned to this attribute; for example, the name of the set can be assigned to a set ΙΗΟ, and this set name is displayed to the user. In each selection Metadata is transferred between the processor and the preprocessor as a structured Per 丨 string. The format of the Perl string is shown in (4) in cell 4 (a). Each ⑴ has six metadata associated with it Field (Xi like fl 1 to fi 6), by — take Separate each metadata field and separate the metadata of each JU from the next one IU by a vertical line (52). Figure 4 (b) shows a table that summarizes the purpose of each field (54 ). Select the program to generate a location field (55) to identify the location where 〖[丨 is stored. The unique Objld indicator block (5 6) indicates whether the preprocessor uses the location to construct a unique object indicator. In some In this case, it is guaranteed that the location code provided by the selector is unique, so the preprocessor does not need to manipulate the location code. One such situation is associated with HTML files, ⑴, because each URL is generated by the selector as The location where 1LI is located. These Urls are unique. If this flag is set, the preprocessor constructs a unique identification code for the object. The order value of the ice field (5 8) indicates that it is required to pass sequentially The depth of the IU in the structure of the information library. The collection object is the root of this tree structure, and will be-17- This paper size is suitable for the country ❼ standard (CNS) _: 4 specifications (2I () x297; f II — —.I-· I 1— 1 ^. Ti —--n (Read first, read the back (Note-fill again- & t this page)

, 1T

J • a— ______ B7 V. Description of the invention (15) 〇 The depth is pre-assigned to this collection object. A picker returns a simple list of broadcast cases I U that are part of this set, and the picker will assign a depth of 1 to each of the files 1 U of these files |. The preprocessor then makes all such building cases IU become sub-items of the collection object 3. An example of the structure presented in the metadata transfer format is shown in Figure 5, the selector determines the subtype field (60), and The IH server will use this sub-surface field (60) to decide how to access the actual I u. The theme bit (62) contains summary information that is related to an iu, and the user will treat the subject field (62) as the name of an object when browsing Liu. The last palm position (64) is the text body of IU '. If you set the index of the collection, the position will be used. The order of each entry in this metadata transfer format stream (48) together with its depth block (58) value will determine its position in the aggregate structure established by the preprocessor. An nj can be represented multiple times in this format stream in order to point out the relationship between other I U S, but the metadata entry green can only appear for the first time. -A blank textual position indication: no need to revisit _ I u and the cross-reference of the index. Because the colon and vertical line (" I ") characters are used as the limit and the IU registration limit, respectively, if these limit symbols appear in any of the printed content of the Central Consumer Agency of the Ministry of Economic Affairs 'Mid' needs to use a backslash symbol (·, \, ·) to make these boundary symbols out. After the preprocessor parses the format stream returned by the selector, the preprocessor stores the object representation in a single metadata file. When the login of the male resource department is proposed and represented by the ΙΗΟ notation in the memory, then the I Η server will read the metadata registry. Appears in the metadata file * 18- The New Zealand-standard financial materials (⑽) Α4 specifications (21QX29 .; public delay) A7 B7 printed by the Employee Consumer Cooperative of the Central Central Bureau of Economics of the Ministry of Economic Affairs 5. Invention descriptions (16) There is a fixed and restructured greening. There are two types of greening in the Metadata Building, namely object greening and relationship greening. Object registration is a flat representation of IHOs and relationship registration represents the mother-child relationship between iHCs. Object greening has an object identification code. Under the designation of metadata in the metadata transmission format, this object identification code can be constructed by the preprocessor or selector. If the preprocessor constructs this object identification code, it will perform this construction in a specific format. This format is · wachineid; location: subtype machineid is the unique physical machine identification code of the machine executing the preprocessor. The pre-processor will automatically generate this bit ^ according to the value returned in the metadata transmission format to specify the location and sub-type field value. A simple or compound I Η Ο position field will be the position of the associated I u. For a set of IΗ Ο, this position will be the position of the set; for example, for an indexed set, the position field will be the indexed position D sub-type block value and metadata transport stream The sub-type values returned in the same are the same. For an integrated IHO, the subtype is the index type; that is, waiting or seeing. The form of object registration is shown in Figure 5. The first field (7〇> is used as an object identification code. This object identification code is used to uniquely identify the object, and is used as a key value. Type (71) and sub-type (T2) value correspondence Non-terminal and terminal categories in the abstract class hierarchy of the server. The browser method uses Cuizhi (73) to paste the data associated with the 1 U encapsulated by this object. After this, there may be any number of attributes- Value pair (74). When the user is in the drama database, use "name = string ". ° Display this information string to the user. -19- This paper scale is applicable to the Chinese National Standard Falcon (CNS) A4 specification ( 210'X 297mm) n I ί · Ηm I ί ^-II Please read the tears of the back tg? Du Yin made A 7 B7 V. Description of the invention (] 7) The form of relationship registration is: [obji / dllobjidlj. This method establishes a mother-child relationship between objects represented by objidl and objid2, and objidl is regarded as 〇bjid2's parent item. The order in which each registration appears in the Meta-information Section file is not limited, but The exception in is that the object registration must appear first, and then its object identification code can participate in a relationship. D. Gateway program In this embodiment, the 'ΗΤΤΊ' P feeder is connected to the gateway via-gateway IΗ word server. This gateway interacts with the following two programs: η τ τ Ρ word server, and η 丁 τρ browser that interacts with the HTTP server (such as'

Mosaic or Netscape) I. Any browser that conforms to HTTP can interact with the HTTP server. There are five actions from the gateway output to η D τ p Liu browser. These actions are: Setup, Init, Expand 'Query, and show. There are four actions output by the I H server and used by the gateway. These actions are: Init, Expand, Query, Show. By design, the HTTP protocol has no borders (for further information on sR ’s, please see http://info.cern.ch/hypertext/WWW/protocol/HTTP/HTTP2.html). That is to say, the interaction between HTTP browser and a server is a national boundary. The η ding τ p between the connections does not save any information on the client. This method is different from the multi-application software that includes the gateway of the present invention. ^ In order to understand the reason, it is possible to consider the information required by the user to issue a content-based query to a collection. The user can specify: the machine on which the ΙΗ server that you want to interact with is running, the speed port number that the ΙΗ server is using to accept the connection, the χ display value, and the application come from -20- This paper standard applies to the Chinese national standard ( CNS) Μ specifications (210.Χ297 male '一 ~~ ----- ~-: --- Γ --- 1' — loaded ------ ordered ------ (please read first (Notes on the back and then fill in this page) A 7 __B7 V. Description of invention (W) The query text of the collection selection object, the maximum number of hits returned on a successful query, and the collection of the query to be executed ' One way of this kind of information would be to force the user to specify all necessary parameters for every interaction with the gateway. However, this way is obviously not a way for the user to use it. On the contrary, the design of the present invention is: use The user only needs to be in one, • Setting ”screen to enter some information once. All screens provided to the user after setting the screen have embedded URL, status " information 'so if the user activates URL link, you can choose to embed from the URL link Status information of this way. The side effect of this way is that some HTML pages generated by the gateway have many URLs, and each of these URLs contains all the information needed to maintain the user's interactive status. Therefore, there is a lot of duplicate information in each URL on a single HTML page. This configuration causes the gateway to consume time to perform the following two tasks: extract information from each input URL; and output from the IH server Reformatted into a number of URLs (and HTML). Printed by the Ministry of Economic Affairs Central Standardization Bureau Employee Consumer Cooperative in the case where the interaction between the HTTP browser and the HTTP server is borderless, discuss the correct sequence of calls to the HTT P server and It does not necessarily make sense. As long as the HTTP browser sends valid requests to the gateway, these requests will be processed without regard to the order. However, in order to allow everyone to use the HTT P browser and HTT P server There is a basic understanding of how to interact with each other, and we will consider the following sequence of events that many users consider to be typical. The HTTP browser opens first — the URL pointing to the gateway (for example, http: //http.ctt.bellcore_com/cgi-.bin,nph-ih.cgi). HTTP server 21-This paper scale is applicable to China National Standard (CNS) Λ4 specification (210X 297mm) A7 B7 V. Invention Description (19) Send the setting screen back to the HTTP browser and respond. The user decides which IH server to connect to, and enters the correct information on the filling form on the setting screen. Once this form is sent, the gateway The tracker is connected to the designated IH server and requests a list of collections managed by the IH server. For each item in the list returned by the ΙΗ server, the gateway generates a URL that contains all the necessary information to use this set in the next interaction, and returns the list to the Η TTP server, the HTTP server sends the list to the requesting HTTP browser. The user can then select one of these sets returned by the gateway for further inquiries. If the collection is indexed, the gateway sends a table to the user for input of search text. If the collection is not indexed, the gateway connects to the IHang (specified in the URL) Feeding device, and require the contents of the list. The gateway then properly formats the contents of the list with HT M L and generates U r l 〇 for each item in the list. If the HTTP browser receives-fill in the form ', a search can be initiated. If the user sends an inquiry, the gateway sends the request to the IH server. The response of the IH server is similar to the results returned when requesting-each item of the list 'and the gateway formats these results into a list and corresponding URLs ^ in the search result list, or in a simple list 'The HTTP browser can select any item in the list. If the user selects an item (that is, click on the link), it will be converted to inform "Show me this item". The gateway contacts the appropriate IH server (still embedded in the URL Status information), and require specific items. 22- This paper scale is applicable to the Chinese National Standard (CNS) A4 specification (210X 297 mm, please read the ιδ I matters first

A7 B7 Printed by the Ministry of Economic Affairs, Central Standard Falcon Bureau Employee Consumer Cooperative B7 Printed by the Ministry of Economic Affairs, Central Bureau of Standardization, Beigong Consumer Cooperative (2〇) The Η server retrieves the item and uses X to display the item to the user. If the item has been designated to be displayed to an HTTP browser, the ΙΗ server retrieves the item 'and sends the item back to the gateway. The gateway (according to the type of data returned) determines where the item corresponds to Multimedia Internet Mail Extension (Multimedia Internet Mail Extension, referred to as MIME>, and the original start code information and actual data to swim back to the TP browser under H "Although IH users will find the outlined in the previous paragraph The steps are fairly familiar, but it is important to remember the following items. T As long as the appropriate information is sent to the gateway, you can perform some steps in any order. The reason why you can do this is the borderless nature of H TTP. Some Users may want to take advantage of this feature. Users may want to construct several "pre-made" queries for a particular 丨 Η server. Each URL representing these queries can be embedded in other HTML documents to provide relevant queries , Or a more descriptive text of its intended result. Another user may want to use some individual objects saved by the IH server in close proximity: these uses You can build URLs that point directly to these objects (even if it is an indexed collection of constituent elements). And avoid the need to search 4 queries to pick objects. The processing that occurs in the gateway is more straightforward When the user activates a link generated by an IH server (for example, the user clicks on an object on the query result screen), the gateway checks the URL that is activated. All such ϋ RL They all stop taxation and have a reason. Stopping a u RL includes: replacing the% X form of all sequences with corresponding ASCII values (where X is a valid hexadecimal value). Making a URL effective includes: selecting the URL Included in the 23, this paper standard is suitable for China National Standard (CNS) A4 wash (210κ297mm) (please read the notes on the back before filling this page) Printed by the cooperative B7 .. 丨 ... 丨 丨 丨 丨 丨 丨 丨-, 丨 M 丨 丨-V. Description of the invention (21) Information (that is, the address of the IH server, connection value, and query text, etc.); and Check whether each value is within a certain limit Within the control conditions (for example, the address is a valid TC Ρ / 1 ρ address, the connection bee number is a non-negative purpose, etc.). After the validity is confirmed, the gateway recognizes the action requested by the user, and Perform the specified action "For some actions (such as inquiries, extended 'display, etc.), contact the ΙΗ server to find the required machine. For other actions, the gateway itself can handle the relevant Requirements, in the case where the server must interact with the IH server, the gateway determines the response type of the IH server and performs the necessary reformatting on any returned data. The gateway should change the theta Convert to a message that matches ΗΤΤΤΡ, and send this message back to ΗΤΤΡ browser c> The gateway supports many different actions that HTTP browsers can request. Each such action will be described below. A " setup " requires that the initial IH server display screen be set to the user. This screen is used to set some system default values used by the gateway for other interactions. This action is usually the first action in a set of actions between the user and the gateway. The "init" request determines: the host name of the IH server, the port the server uses to accept the request, and the DISPLAY value of the user's machine. The system default values of these variables are maintained in the gateway. | Providing these system default values to users "End users can change any of these values from the settings screen. Then, these values sent by the user are maintained through a call to the gateway. The maintenance method is to add these values to all URLs generated by the gateway and sent back to the user. Once the user has specified these values, the paper size is applicable to the Chinese National Standard (CNS) Α4 specification (210Χ 297 mm) (please read the precautions on the back before | write this page)

、 1T ___________ B7 V. Description of the invention (22) After sending the request to the gateway, it shows the list of these values and the set of I Η servers that these values can access. " Expand (expand) " requires expansion of the collection. Collection expansion has different meanings for different types of collections. For indexed (that is, searchable) collections, the extension provides a table-based interface for specifying search parameters to the collection. For all other collections, the extension will cause a request to be sent to the IH server 'in order to request (as specified by an object identification code) a specific I n set. The requested result is formatted in HTML for display to the HTP browser. When the type of the object is LIST, HTML does not include the U R L of the parent item set; when the type of the object is not L J S T, then the URL of the parent item set will be included in the HTML. '"Query (query)" performs a query on the indexed collection. The query text is sent to the I Η server, and if the collection contains any information unit of the search criteria that is full, then the I Η server will send back a A list of IΗ Ο identification codes corresponding to these information units. If no matching information units are found, then! Η The server sends back a message informing that no matching information units are found. Employee Consumer Cooperative, Central Bureau of Standards, Ministry of Economic Affairs Printed M display (show) ························································ |||| The object is sent back to the gateway (the gateway then sends the object back to the HTTP browser); or the ΙΗ server will start a process and send the object back to the HTTP browser. E. I Η server Description The IH server is a key part of the system of the present invention. This IH server allows users to access a group of IH objects that constitute the server's information library. From -25- This paper size applies to China National Standards (CNS) Α4 specification (210Χ297mm)--________B] ____ V. Description of invention (23) Dynamo 'server is told: which collections will constitute the server's information base β For each collection specified In particular, the server finds, reads, and parses the set of metadata files, and constructs an internal (in-memory) representation of each I Η () and the relationship between them. Each -I Η Ο in the memory Is an instance of an "artifact " C ++ subcategory; this particular subcategory depends on the type of I Η 〇 'and determines how this object will handle incoming HTTP browser requests. Once the server reads the metadata, the server enters an event loop waiting for input requests from the gateway, processes the requests, and sends back appropriate responses. -The following sections will detail the processing procedures performed by the server. The administrator manually starts the IH server, or automatically starts the IH server during the machine's startup program cycle. Tell the server which collections constitute its database via the arguments on the command line. For each collection, build an lhMeta object to read and parse the metadata of the collection (see the table in circle 6 (75) ). Each collection is stored in its own subdirectory and contains a file called IH_SUMMARY. The IH-SUMMARY crotch case contains meta-information about the collection. The server uses this meta-information to clearly determine the IHO meta-data plan to be read. Printed by the Employee Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs. Each metadata file contains a number of green signs that describe the enclosed IHO and the relationship between them. This ihMeta object parses each green one by one. The green can be an IHO or a relationship. For each I Η Ο login, a new ihArtiface C ++ object will be constructed. This object is actually an instance of an object from a specific category of ihArtifact. The specific specific categories generated depend on the type attributes of the IHO: each artifact sub-category is defined -26- The paper size is applicable to the Chinese National Standard (CNS) A4 specifications (210 '< 297 mm) A7 B7 307840 V. Invention Explain (24) the specific behavior of various requirements for the type of object. This category _ soil _ depends: how the target artifact will respond to the end user's ~ cut Tp of the object. —After mutual taste, the object is added to an overall object table for querying by using the object identification code as a key value. h Unrelated registration specifies the parent-child relationship between two objects a. When reading a relationship from the Metadata Building, the server refers to the "object system" at the two "ends" in the overall object table and the parent and child Establish a two-way comparison between item artifacts (Yi Gen 'add children to the parent group of the child, and add the parent to the child group of the parent). Although when analyzing metadata,' if * ihMeta objects please test When the wrong format is reached, the ihMeta object will report an appropriate error message to the manager. If too many errors are found, the server will terminate the process before reaching the event loop. —Once the server is on all connections After successfully reading in the server, the server enters the main event loop and waits for the request from the client. The Central Prototype Bureau of the Ministry of Economic Affairs of the People ’s Consumer Cooperative Printed the server object model of the server. + A class hierarchy of categories. Each I Η object has a type and a type 3 type definition: that specific category will represent ΙΗΟ in the server ’s internal representation of the object; and how the object will generally be Respond to the user's actions. The subtype determines how to implement these general actions on objects. (For example, execute Ghostview to display the PostScript objects on the server side (class is Μ Μ, subtype is postscript); and execute FrameMaker The software can display the server-side Frame Maker objects.) When the collection is prepared, the type and subtype of these objects are determined by the standby selector. Circle 7 shows the category inheritance park of the ihArtifact category family. IhArtifact is a paper size of 27 Applicable to the Chinese National Standard (CNS) A4 specification (210X 297mm) A7 B7 V. Invention description (25 abstract category, used to define the interface of all IΗ objects in the system. For example, ihArtifact abstract category (80) inherits ihArtFile The properties of objects (8 2) and ihArtSet objects (8 4). Circle 8 shows the definition table of the abstract interface of artifact objects: 圉 9 shows a table that contains how to implement the methods shown in circle 8 for each category Some descriptions. A category in the ihArtifact hierarchy,-object instance, when executed, represents each metadata entry in a resource library. Two artifacts are used to maintain these artifacts: (l) mapping each object identification code to each artifaci's-object table, and (2) the interpretation of a compound object represented by a two-way mother-child relationship. When taken from the case Metadata registration 'and these meta-data branch greens are represented as anif⑽, these meta-data registration greens are added to the objects φ still 汴 衣 Τ β This table is stored in the ihGraph category called “graph” (see Circle i〇)-Object Poor Instance η _ is an example of the relationship of the main objects in the server during execution.斋 二 旦 ㈣Μ has become the ## co-hosting office of the information (after the server enters the main event pond circle. The main agent :: Please take and handle it. Expressed as a virtual code as follows: Responsible for continuous execution of the following matters : Printed by the Central Bureau of Standards of the Ministry of Economic Affairs, the Negative Work Consumer Cooperative, waiting for an input connection from a user terminal to generate a new Chengan bank and process the request. For each input request (commonly σ fruit eight has one request), Read the request, process the request, and send the response back to the client. Say the ruler (28 A7 B7 Printed by the Central Equatorial Bureau of the Ministry of Economic Affairs, Zhengong Consumer Cooperative. V. Invention description (26)-Kan closed and Exit sub-program When each input request is received from the HTTP browser, the server will process the request. The server contains a whole object instance called ".server", Yanbei⑻ ^ for processing Communication between programs. The main event echo request " lamp " object read next request: once read, the request is sent to the metadata graphic object for processing. The generic object resolves this request, To decide The object identification code of the affected object, D ', and the action taken. The circle-shaped object retrieves the arti 〖, ac; t in its object mapping table, calls the appropriate method for the execution, and captures the result. Inter-H TTP if] browser circle 12 shows a consistent example of such behavior in an object interaction circle. The main event loop (100) informs the server object (i01) to read a request and tells the country-shaped object to process ( 102) This requirement. This circle-shaped object calls the selection method performed on the anifact (in this case, start (103)), and this method executes a browser processing program (script) (104). Actually retrieve the required data. The feeder object sends these results back to the gateway. Each object type in the IH feeder responds to the user's interaction in its own way. Sometimes it is directly C + + Language write this kind of function into [H server, otherwise this kind of function will depend on the program called "browser handler, helper". The definition of browser handler is related to specific types and subtypes Mechanism for close use-objects. At the browser The input of the program is a position parameter that can identify the object to be viewed. The responsibility of the browser to process the program is to show the object to the user; the way to complete this responsibility depends on the type of resource and the use The way the data is displayed. For example, when the user wants to show cheeks .. 29--------- 丨 &-.. f (please read the precautions on the back before filling this page)

, 1T line--II-· This paper silver standard is applicable to the Chinese National Standard (CNS) A4 specification (2 丨 0X297mm) B7 5. Invention description (27) Type MM (" server side ") ) And the file of the subtype is called browser processing program of PostScript file. The p〇siScript ^ browser processing program uses the name of the PostScript file and executes a viewing program (ie " ghostview ”) to display the file. The C browser processing program sends the name of a c file and the nuclear building case The name of a function; the processing program selects the specified function and sends the file back to the calling server (ie, the server). There are two implementation details. These implementation details are not the central part of the present invention, but in In this embodiment, it is necessary to emphasize the two implementation details of the encapsulation method of executing system commands-Γ and (2) the ihBloclcMgr category that captures a larger output. There are several types of IH servers that need to execute -umx programs (such as ptfr 丨 processing procedures) And capture the object instance of its output. For example, the server executes a Perl program called, browser processing program, and these processing programs are based on specific types and subtypes to the user's software. In addition, when the word Server query: When indexing, a _ program related to a specific device must be executed. 4 Perl programs execute the program again and format the response ^ independent Data • Envelope " is used for these two kinds of work. Encapsulation is divided into a new pre-item program, and the parent program and sub-item are created by the Ministry of Central Bureau of Standards and Quarantine Bureau of Consumer Labor Cooperatives. The equivalent pipeline; the sub-material phase error and the output are re-phased to the parent program. The parent program then reads the output. The output of the sub-program is collected in the buffer of the dynamic capacity (see below) B1〇dcManager); Then, if necessary, the content of the buffer can be sent back to the HTTP browser. The GNUStHng category ^ is not sufficient as-all kinds of storage of any length -30. Β7 V. Invention description (28) bit The data structure of the tuple information stream, because this category is limited to a maximum of only about 32,768 bytes. Therefore, a more elaborate mechanism is needed to capture the output of the browser processing program, or read in any large number of crotch cases Take. The ihBlockMgr category is for this purpose. This category holds a sequence of zero or more data •• segments ”or buffers. Each sector can store up to a fixed number of bytes. When the encapsulation function captures data, or reads data from a file, the data is nested in the last segment of the segment management program sequence. When the existing section is filled, a new section is put into this sequence. Therefore, the segment manager is an efficient way to store dynamically growing byte data streams. In addition to providing a mechanism to add data to the segment management program (representing the segment management program twice as a whole), inBlockMgr also includes: a method of repeating each segment one at a time, and a method of clearing the contents of the management program. E. Interaction of subsystems Printed by the Consumer Labor Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs -------- Installed! * · C (Please read the precautions on the back before filling this page)

tT In the pre-processing method of the present invention, we define a, inprep " program, which is a Per management program for selecting metadata. The in_prep process works with two other types of programs: selectors and indexers. The selector is used for certain types of Per-sub routines. The in-prep process requires this sub-routine to send real hips and select the metadata and index information required. Β Every time under the control of the ΙΗ server Each type of data requires separate selectors. The indexer can be implemented in any desired language. The limitation of the mouth is: the knock-out program must be able to use the indexer through the "丨 ~ ^^ ⑽ ^" function. The indexer is not limited to a specific type, because the indexer can be applied to any text data. The indexer is used to provide content-oriented information for physical assets.

Printed by the Beigong Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs 307840 A 7 ______ Η 7 5. Description of the invention (29) " '--- Inquiry. Figure 13 shows the interaction between the in_prep program, the picker, and the indexer. In each call to in prep (丨 丨 〖), a selector is called to process each component of each required information unit. This in-prep process sends the location of the physical data (usually a file name) to the selector (1 1 2). This selector then processes the physical data (called the information unit IU) and selects the metadata 'and the text to be selected from the index i (J, and if there is more than one IHO in the IU, the selector also creates each object The relationship between these objects and relationships generated by the selector (112) is sent back to inprep (111), and in_prep (111) nests these objects and relationships into the metabase for future use by the IH server. —Prep (111) call the appropriate indexer to set the index 113 for the text data selected from ιυ. Store the output of the indexer in the metadata database for future use by the j H server. I Η server is running Load the metadata generated by the in-prep process and stored in the metadata database into the memory "IH server" and enter a loop that can respond to the input request from the H TTP browser. Please refer to the circle 3. After starting and executing the server, the ΙΗ server enters a main event loop and waits for the request of the client (38). The end user servos with the ΙΗ via a ΗΤΤ Ρ server (40) Device connection. Once finally After the user connects to the ΙΗ server, one of the following three actions can be used to select an object (42): (1) metadata-oriented query, (2) content-oriented query, or (3) direct Operate each IH Os. Once you select an object, you can start a client browser (4 4) or server-side browser (4 6), and take and browse -32- This paper standard is applicable to Chinese national standards ( CNS) Λ4 present grid (210X297 male-: ---; ---- f ~ installed ------ order ------ 1 ice (please read the precautions on the back before filling this page) B7 Fifth, the description of the invention (30) and from such things as printing and storing the object. The user can also make a choice in a set of procedures such as operation and transmission of the object. The processing of inverse order query. User's private request via HTTP (121) — the initial set saved by the Ih word server transmits the 4 request to the idle channel device via GI (1 2 2). The closed channel device is connected to ⑶ The server's request (123) the initial set via an internal communication protocol. The ΙΗ server determines the initial set based on the metadata in its memory, and The result is sent back to the channelizer (〖24). The channelizer reformats the response into HTML and sends the response (12 Qiao to the η Ding p server, the η τ τ p server sends the result without interruption Send back to (丨 26) HT Τρρ 丨 browser client, because the present invention is-"non-analytic start code, gateway". This means: Η Τ Τ Ρ server will not The response performs parsing, and the gateway must be able to form the correct HTTP response. Figure i5 shows the procedure for making a context-oriented query. The end user requests a context-oriented query (1 5 1) for a set of nfoHarness saved by ih_server via HTTP. This request is transmitted to the gateway (152) via c G ί. The gateway is connected to the ih_server and requires a context-oriented inquiry printed by the Employee Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economy (153) and the inquiry text is sent. According to the type of InfHarness set, the appropriate indexer is called and the search is performed (1 5 4). The indexer sends © an IHO list that satisfies the query (155). The iH server returns this 1HO list to the gateway (156). The gateway reformats the list of Info Harness objects in HTML and sends the list back to the HTP server (15 7). The HTTP server sends this list of objects to the HTTP browser (158). Illustration 16 shows the processing of a request to call a server-side browser. One use 33- This paper is applicable to China National Standard (CNS) A4 (2 丨 0X 297mm). Printed by the Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs. AT _____B7 5. Description of Invention (si) IH object saved by [Η server (161). This request is sent to the gateway (1 6 2) via C G .I »The gateway is connected to the IH server and requests the I η object via any internal communication protocol (丨 6 3). The IΗ server decides that the requested object requires a call to a server-side browser (164). Use the object location to call the correct browser. The browser starts a process for displaying this object to the client machine (164). Any error text generated by the browser is sent back to the I H server (1 6 6). The IΗ server sends a message back to the gateway to indicate whether the browser was successfully called or there is an error text generated by the browser (1.67 Guang. If an error message is received from the IΗ server, Then reformat the error message into HTML and send the error message back to the HTTP server (1 6 8), otherwise the gateway will indicate a success message or 〇κ message via HTTP (169). The response of the device is sent to the user via HTTP (170). As long as the user does not close the application launched by the browser, the application can call any action supported by the application and send the decision back The machine started by the browser. (Be aware of the security risks associated with server-side browsers.) The user uses an application that is executed under the permission of the inherited IH server. This means that the user can open other files, change other files, and can even detach from the shell on the machine that starts the browser (still inheriting the characteristics of the user who started the IH feeder)) 0 Figure 17 shows the sequence of requests to call a client browser. The client browses an IH object saved by the IH server (1 7 1) via a HTT. This request is via C GI is sent to the gateway (1 7 2). The gateway is connected to j η 34 (please read the precautions on the back-%-each page). The paper size of the binding line is applicable to China National Standard (CNS ) Α4 specification (210 < 297 mm) A7 B7 V. Description of invention (32 servers and requires IH objects (173) ^ IH. The server checks the type of objects required and decides to use a client browser (Or an external viewing program in the view of Ηττρ browser) The object is displayed. The object location is determined and the IH server sends the file content back to the gateway s Closer to execute the object ’s type and type Corresponding to the mapping relationship of the object's μ ί ME type. This Μ Μ E type and the content of the object are sent back to the τ τ τ p server (175). The HTTP browser receives the content of the object and decides which external reading The browser will store the content of the specified MIME type (176) in the Temporary building case. Use the name of a temporary file containing the object required by I to start (177) external viewing program. We should understand that the method and system described in the present invention for accessing heterogeneous information in a single way is not limited to The specific form disclosed and exemplified herein, but other embodiments can also be used, so the present invention is not limited to the scope described in the following patent applications. Please read it first, and then write down the notes and matters on the back of this page Binding the Ministry of Economic Affairs, Central Bureau of Accreditation, and Employee Consumer Cooperatives to print the standard bidder ’s home country, j country, and medium-sized paper with a suitable ruler 5 3 1 cm 7 7 2

Claims (1)

AvS B8 α < ______ D8 1 丨 丨 _ 丨 丨 _ · Min «——» -I II · I—W ^ · Ml 1111-11 丨 丨 丨 丨 ' Patent ^ L A system that provides a plurality of end users to access heterogeneous data in a single way. The system includes: a resource library of meta-information selected from a plurality of information sources; a server with moxibustion, the server has The specific representative of the metadata of the database loaded into the memory skeleton. 2. The system according to item 1 of the patent application group also contains a number of information servers, which include the information sources connected to the server 0 3. According to item 2 of the patent application application. The system also includes a number of browsers that are compatible with HTP and these browsers are all connected to the server. 4. According to the system of item 3 of the patent application Fangu, in which the metadata of the metadata loaded in the memory of the feeder is organized into several objects, collections, and information libraries. A method by which multiple end users can access the heterogeneous information of individual information units. The method includes the following steps:-Pre-processing the heterogeneous information of the individual information units in order to select the meta-information of each such information unit; Generate the database of the metadata; load the metadata of the database into the resident memory of the server; place the server in the main event callback while waiting for the metadata The end user ’s request; receiving the end user ’s request for information on the server; and -36- This paper is applicable to the Chinese National Standard (CNS) Α4 洗 格 ί 210Χ297 (please read the back page first Please pay attention to item Ϋ and fill out this page again.) • Binding 3〇784〇Yi C8-D8 Liu's patent application scope utilizes the meta-resources stored in the resident memory to respond to these requests. 6. The method according to item 5 of the patent application scope, in which the resource library generated from the metadata organizes the metadata department into a number of objects and collections 3 7 'The method according to item 6 of the patent application nursery , Where the step of loading the metadata section of the database includes the step of loading the objects and collections, and the step of organizing the objects and collections into several information databases. 8. The method according to item 6 of the patent application profile, in which the request received from the end users is a meta-inquiry query, or an information content query, and where the server responds to the query and sends back the One of the objects that satisfies the query. 9. According to the method of claim 8 of the patent application, the response step includes calling a client browser in order to view one of the objects and the steps of the information units identified by the object. 10. According to the method of claim 8 of the profit-making application, the response step also includes the step of calling a server-side browser to view the information units identified by the object in the object. (Please read the precautions on the back before filling in this page). Costumes, va economy. Printed by Deng Central Standards Bureau employee consumer cooperatives- 隼 ί 棣 家-国-国 ί 中 Use moderate-sized sheets of paper SN Regulation-- -37