KR20050109063A - Electronic document versioning method and updated information supply method using version number based on xml - Google Patents

Abstract

In the method of providing an update document using versioning and versioning based on the extensibility notation language according to the present invention, when creating an electronic document using a grammar defining a structure of a structured electronic document, a date value of a modified or added version is used. In this case, the document can be easily managed in the repository, and when the update information is requested, only the changed and added contents are collected and notified, so that the electronic document of the receiving party can be gradually updated.

According to the present invention, the version is reflected to reflect the modified or added substructure, thereby making it possible to quickly search for update information in the repository and to request update information for a desired level.

Also, according to the present invention, the version value of the superstructure is modified if its version value is modified, and further information on what type of structure of the substructure has been changed. It may also include.

In addition, according to the present invention, when the identifier information and the versioning method for the electronic document are used together, when the identifier is reused, the version value may be used as a method for distinguishing the electronic document.

Description

Electronic document versioning method and updated information supply method using version number based on XML}

The present invention relates to an electronic document versioning method and a method for providing an updated document using a version, and in particular, a search for an electronic document based on an extensible markup language (XML) using a predetermined grammar can be performed. The present invention relates to an electronic document versioning and updating document providing method based on an extensible notation language.

Recently, an example of writing an electronic document using Extensible Markup Language (XML) is increasing. The utilization rate of XML is increasing rapidly in the world, and the introduction of XML is increasing not only in general enterprises but also in government, government offices and public institutions. These electronic documents are usually written based on the grammar set by each institution.

As the number of electronic documents written in XML is increasing rapidly, there is an increasing number of electronic documents being managed by a client / server structure that maintains documents on a server and finds and provides desired electronic documents according to user requests. This client / server structure is as shown in FIG. 1 is a diagram schematically illustrating a client / server structure for requesting / providing an electronic document based on a general extensibility notation language.

At this time, the client represents the side requesting and using the document, and the server represents the document provider. Thus, if the system requesting and using the document has the ability to store and provide the document at the same time, the client may be the server at the same time, depending on the role.

Languages for searching such XML documents include XQL (XML Query Language) and XQuery. In the case of using the requested document provided in this way, there is no way to express it separately in order to inform only the changed or added contents, so that the entire contents including the contents already provided at the time of initial delivery must be repeatedly transmitted. .

An object of the present invention is to enable a provider to efficiently manage a document by using a version value by using date and time information whose structure is changed as a version value in managing a structured electronic document.

In addition, the present invention, if the contents of the substructure is changed by the modification or addition, the version value of the substructure changed content is changed, by reflecting this to the version value of the superstructure including the changed substructure, by using the version value Another purpose is to make it easier to find modified or added substructures.

In addition, the present invention, the extensibility notation language that allows the provider to transmit only the added or changed content using the version value, not the transmission of the entire document, thereby increasing the transmission efficiency and enabling the progressive update of the electronic document of the receiving party. Another purpose is to provide a method for updating a base electronic document.

In addition, the present invention has another object of using the identifier information for the electronic document and the date and time information version value together, so that the electronic document can be distinguished using the version value when the identifier is reused.

In order to achieve the above object, an extension document providing method based on an electronic document versioning and version based on an extensibility notation language according to the present invention,

In setting the version value of a structured electronic document, the version value is determined by specifying the version value of the version element name / version attribute name values of the structure using the structure's most recent modification date and time information. Its characteristics are that it can manage documents efficiently.

According to the present invention, when the version value of the substructure is changed by the modification or addition, it is reflected in the version value of the superstructure, thereby making it easy to find the substructure modified or added using the version value.

Here, according to the present invention, by providing a version value of a document provided previously at the time of requesting a document, requesting the provision of an electronic document having a version value after the provided version value, an electronic document that satisfies the requested version value condition It is characterized in that it is provided.

According to the present invention as described above, the provider can transmit only the content to be added or modified separately, there is an advantage that the requestor can easily update the content of the existing document.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The method of providing an update document using versioning and versioning of a document to be proposed in the present invention is as follows.

Electronic documents written in XML language define the grammar using DTD (Document Type Definition) or XML Schema language. These grammars define the structure of the entire electronic document and limit each item's name, number of occurrences, order, mandatory / selection, and item attributes. Electronic documents are valid documents for grammar written in these languages. The version also corresponds to the same item or attribute.

The present invention proposes a method for a provider to manage update information of a document over time using a version item / attribute value of a predetermined grammar.

In addition, in the present invention, the requestor requests documents after the version value of the latest document received by the requestor to the electronic document repository, and is provided with the electronic document after the version value used as a condition.

The present invention also provides a method for distinguishing an old document from a new document with the identifier when the identifier for the electronic document is reused after a certain period of time.

The identifier information is identifier information that can uniquely distinguish a specific electronic document. Because the range of identifier information is limited, it is generally used in order from the minimum value. The lifetime of an assigned identifier value will be a cycle in which all values of the maximum identifier range are allocated.

Therefore, when the number of electronic documents increases and the identifier information is used up to the maximum value of the range, the circulation is repeated again using the identifier information assigned to the invalid electronic document. In other words, the identifier cycle allows you to reuse identifier values that were assigned to old documents that are no longer valid.

However, when there is a need to distinguish between old and new documents having the same identifier value for document management or other reasons, and these documents, the document is a version value using the most recent modification date and time information proposed by the present invention. Can be distinguished. In other words, documents can be distinguished by using identifier information and the latest modification date / time.

The electronic document request / provision method may be applied to a system composed of a person requesting to provide an electronic document, a person providing a requested electronic document, and a network connecting them, and in some environments such as a broadcast program providing system. After providing only basic information, it may be applied to a system that receives updated information according to a user's needs.

The present invention proposes three methods of versioning.

2 is a schematic representation of an electronic document grammar based on a general extensibility notation language for explaining a version method. Each parenthesis is the number of substructures that can come in the parent structure. In order to account for all possible cases, it is assumed that it is possible from zero to infinity.

The first method of versioning according to the present invention is to use date and time information when the content of a document is added or modified as a version value. Depending on the units of the document being modified, values that include time information may be used as version values, or date information may be sufficient. 3 is a diagram illustrating the first versioning method based on the extensible notation language according to the present invention using the schematic diagram of FIG. 2.

In the second method of versioning according to the present invention, if the version value of the substructure is modified in addition to the first method, the version value of the superstructure is changed to the latest date information among the version values of the substructure. 4 is a diagram illustrating a second versioning method based on an extensible notation language according to the present invention using the schematic diagram of FIG. 2. The latest value among the version values of the substructure becomes the version value of the superstructure.

The third method of versioning according to the present invention is to indicate what type of substructure has been modified or added to the version value of the superstructure in addition to the second method. In the case of many substructures, the version value can be used to easily find the changed type, thus reducing the time to find the changed structure. FIG. 5 is a diagram illustrating a third versioning method based on an extensible notation language according to the present invention using the schematic diagram of FIG. 2. The type of the substructure is represented by a bit masking method, and the bit masking value is expressed in decimal or hexadecimal. The provider uses bit masking as an internal management, and when providing a document to the requester, the provider provides a version value excluding the bit masking information.

As an example of application, a grammar of an electronic document related to a broadcast program is defined as follows, and a case in which an electronic document versioning and update document providing method using a version according to the present invention is applied will be described with reference to FIG. 6. Let's see. FIG. 6 is a diagram illustrating an example of a structure diagram showing a grammar for a broadcast program created by an electronic document creation method based on an extensible notation language to which the versioning method according to the present invention is applied.

Broadcast programs have 'version', 'broadcasts' and 'broadcast schedules' information, 'broadcasts' have a list of 'versions' and 'broadcasts', 'broadcasts' Suppose you have information about a program's content, such as 'version', 'title', the only 'identifier' that points to the program, and the 'storyline'. 'Broadcast schedules' have a list of 'versions' and 'broadcast schedules', 'broadcast schedules' are 'versions', unique 'identifiers' that refer to programs, 'broadcasters', 'broadcast times', Suppose you have information related to a broadcast, such as 'broadcast period'. 6 schematically illustrates this grammar.

In general, as information related to a broadcast, the title, broadcast time, broadcast-related electronic document, and the like are examples of metadata about broadcast contents. Such metadata is typically defined as data used to describe information of broadcast contents to a user or to organize and express broadcast contents. That is, the meta data means additional information about broadcast content.

This syntax is written in DTD and XML Schema as shown in FIGS. 7 and 8, respectively. 7 is a diagram illustrating an example of a grammar for a broadcast program created by an electronic document creation method based on an extensible notation language to which the versioning method according to the present invention is applied, and FIG. 8 is a versioning method according to the present invention. A diagram showing an example of a grammar for a broadcast program produced by the electronic document creation method based on the applied extensible notation language is shown in XML Schema. Since the version value uses date information, you can use 'dateTime' type.However, depending on the application and versioning, the version value is defined as 'string', 'integer', 'float', etc. Can also be used. In the case of FIG. 8, 'string' type is used to represent all three versioning methods.

The broadcast program document actually created according to this grammar is as shown in FIGS. 9, 10, 11, and 12. These are diagrams showing an example of a broadcast program electronic document created by an electronic document creation method based on an extensible notation language to which the versioning method according to the present invention is applied. FIG. 9 is a diagram illustrating an initial document structure, and FIGS. 10, 11, and 12 are diagrams illustrating a document structure of a current state in which FIG. 9 has been changed, using three versioning methods.

If the requester receives the program information of FIG. 9, it is assumed that the program information changed up to now is requested using the version value of FIG. 9. The requestor may request full update information using the version value (Request 1), or may specifically request only update information of a 'broadcast schedule' required by the requestor (Request 2). The request conditions in each case for the above three versioning methods are as follows:

(Request 1) 'Version' ≥ 20020407

(Request 2) 'Broadcast Programs / Broadcast Schedules / Broadcast Schedule / Version' ≥ 20020407

Accordingly, the electronic document storage system according to (Request 1) and (Request 2) uses the updated electronic document in accordance with a predetermined grammar as shown in FIGS. 13, 14, 15, and 16, and is used by the user. To be provided.

The updated electronic document provided by the first versioning method for (Request 1) is shown in FIG. 13, and the updated electronic document provided by the second and third versioning methods is shown in FIG. Since bit masking of the third method is information that the provider has internally, the provisioning documents of the second and third methods are the same.

The updated electronic document provided by the first versioning method for (Request 2) is shown in FIG. 15, and the updated electronic document provided by the second and third versioning methods is shown in FIG. 16.

If the lifetime of the identifier is so short that both programs coexist at the same time, it is necessary to send information that the previous program is no longer valid. In such a case, by providing the identifier value and the version value of the document which is no longer valid, the requester can distinguish among the documents before the version value that the document having the same identifier value is an invalid document. Accordingly, the same identifier value can be assigned to a new document.

17 and 18 show examples of a document in which information about a program that is no longer valid with respect to (Request 2) is included and provided in an item of <invalid>. FIG. 17 is a diagram showing an example of an updated electronic document provided according to (Request 2) in a system using a first versioning method and identifier based on an extensible notation language according to the present invention, and FIG. Figure 2 shows an example of an updated electronic document provided according to (Request 2) in a system using the second and third versioning methods and identifiers based on the extensibility notation.

Here, when trying to express that the old document with the identifier value "KBS-2002-0394" of the newly added document is no longer valid, the date is less than the most recent modification date of the old document or the original creation date of the new document. By expressing it as a version value "20020110", it can be distinguished from a new document having the same identifier value.

As described above, according to the method for providing an electronic document versioning and version based on the extensible notation language according to the present invention, it is possible to incrementally update the document by providing only updated information of the content of the document.

In addition, when the identifier is reused, it is possible to distinguish between the old document and the new document using the same identifier as the version value by the versioning method of the present invention.

As described above, according to the method for providing an update document using an electronic document versioning and a version based on the extensible notation language according to the present invention, in managing a structured electronic document, a provider can update a date and time information whose structure has been changed. By using the value, there is an advantage that can efficiently manage the document by using the version value.

In addition, according to the extensibility notation language-based electronic document versioning and the method of providing an update document using the version according to the present invention, when the version value of the lower structure is changed by modification or addition, the version is reflected by the version value of the upper structure. The advantage is that it is easy to find substructures that have been modified or added using values.

In addition, according to the extensibility notation language-based electronic document versioning and the method of providing an update document using the version according to the present invention, the provider can separately transmit only the content to be added or modified, thereby reducing the amount of transmission and the requestor of the existing document The advantage is that the content can be easily updated.

In addition, according to the method of using the date and time information whose structure is changed according to the present invention together with the version value, the identifier information for the electronic document and the date and time information version value, the same identifier is used by using the version value when the identifier is reused. There is an advantage in that it is possible to distinguish between an old electronic document and a new electronic document.

1 is a schematic diagram of a client / server structure for requesting / providing an electronic document based on a general extensibility notation language.

2 is a diagram illustrating an electronic document creation method based on a general extensibility notation language.

FIG. 3 is a diagram illustrating a first version pagination method based on an extensible notation language according to the present invention using FIG. 2.

FIG. 4 is a diagram of a second versioning method based on an extensible notation language according to the present invention using the schematic of FIG. 2. FIG.

FIG. 5 is a diagram of a third version pagination method based on an extensible notation language according to the present invention using FIG.

6 is a diagram showing an example of a structure diagram showing a grammar for a broadcast program created by an electronic document creation method based on an extensible notation language to which a versioning method according to the present invention is applied;

7 is a diagram illustrating an example of a grammar for a broadcast program created by an electronic document creation method based on an extensible notation language to which a versioning method according to the present invention is applied;

8 is an XML schema illustrating an example of a grammar for a broadcast program created by an electronic document creation method based on an extensible notation language to which the versioning method according to the present invention is applied.

9 is a diagram illustrating an example of a broadcast program electronic document created by an electronic document creation method based on an extensible notation language to which a versioning method according to the present invention is applied.

10 illustrates an example of a program electronic document in a current state using a first version pagination method based on an extensible notation language according to the present invention.

11 illustrates an example of a program electronic document in a current state using a second versioning method based on an extensible notation language according to the present invention.

12 illustrates an example of a program electronic document in a current state using a third version pagination method based on an extensible notation language according to the present invention;

FIG. 13 illustrates an example of an updated electronic document provided according to (Request 1) in a system using the first versioning method based on the extensible notation language according to the present invention. FIG.

FIG. 14 illustrates an example of an updated electronic document provided according to (Request 1) in a system using the second and third versioning methods based on the extensible notation language according to the present invention. FIG.

FIG. 15 illustrates an example of an updated electronic document provided according to (Request 2) in a system using the first versioning method based on the extensible notation language according to the present invention. FIG.

FIG. 16 illustrates an example of an updated electronic document provided according to (Request 2) in a system using a second and third versioning method based on an extensible notation language according to the present invention. FIG.

FIG. 17 illustrates an example of an updated electronic document provided according to (Request 2) in a system using a first versioning method and an identifier based on an extensible notation language according to the present invention. FIG.

18 illustrates an example of an updated electronic document provided according to (Request 2) in a system using a second and third versioning method and identifier based on an extensible notation language according to the present invention.

Claims (6)

The method of managing identification information of metadata related to a broadcast program based on a written language, Determining whether sufficient time has elapsed after the lifetime of the identification information arrives; If it is determined that sufficient time has elapsed, reusing the identification information of the metadata as the identification information of other metadata; Metadata management method comprising a. The method of claim 1, The metadata is a metadata management method, characterized in that defined by the grammar defining the structure of the electronic document. The method of claim 2, The grammar is an XML schema (eXtensible Markup Language schema), the broadcast program is a metadata management method, characterized in that the television broadcast program. The method of claim 1, The identification information is a metadata management method, characterized in that the lifetime of the assigned identification information value is reused in the cycle of identification information to which all values of the maximum identification information range is assigned. The method of claim 1, The identification information of the metadata is a metadata management method, characterized in that using the identification information value and the date / time information identifying the metadata together. It is determined whether sufficient time has elapsed after the lifetime of the identification information of the metadata related to the broadcast program based on the mark language, and if it is determined that sufficient time has elapsed, the identification information of the metadata is identified from other metadata. Identification information management device of metadata, characterized in that for reuse as.