KR101000177B1 - System and its method for providing valuation information of web services - Google Patents

Abstract

The present invention relates to a web service evaluation information providing system and a method thereof. The present invention relates to an evaluation information providing system for evaluating and managing a web service in a web service system in connection with a web service intermediation system (UDDI). The present invention provides a web service evaluation information providing system and method for providing web service evaluation information when a service request is made.

To this end, the present invention, a web service providing system for registering its own web service in a web service brokerage system in response to a request from the outside, and providing a web service according to a request from the web service request system; Requesting a web service search to the web service intermediation system to receive a web service search result and evaluation information, and using the received web service search result and evaluation information, the web for requesting a web service to a corresponding web service providing system Service request system; Register a web service according to a registration request from the web service providing system, request an evaluation of the registered web service with an evaluation information providing system, and search for a web service according to a web service search request from the web service request system. And requesting the evaluation information of the searched web service to the evaluation information providing system and returning the result, and then transmitting the web service search result and the evaluation information to the web service request system. ; Evaluate the web service according to the web service evaluation request from the web service intermediation system, calculate a rating, and store the result in an evaluation information database. The evaluation information providing system for returning the result; And the evaluation information database storing web service evaluation information according to the control of the evaluation information providing system, wherein the web service intermediation system is configured to provide a web service through a publishing application from the web service providing system. After receiving the registration request, after registering the web service in its own UDDI registry, the service key (Service Key), service basic information, service technology information for the web service to the evaluation information providing system to request for evaluation It features.

Web Service, Web Service Provision System, Web Service Brokerage System, Web Service Request System, Evaluation Information Provision System, Web Service Registry (UDDI)

Description

Web service evaluation information providing system and method thereof {SYSTEM AND ITS METHOD FOR PROVIDING VALUATION INFORMATION OF WEB SERVICES}             

1 is a configuration diagram of an embodiment of a conventional web service system;

2 is a flowchart illustrating a method for providing a web service in a conventional web service system.

Figure 3 is an embodiment configuration for a web service evaluation information providing system according to the present invention.

4 is a flowchart illustrating a method for providing web service evaluation information according to the present invention.

5 is a structural diagram of an embodiment of a registry and evaluation information database of a web service brokerage system (UDDI) according to the present invention;

6 is a detailed flowchart illustrating an embodiment of a web service registration process in the method for providing web service evaluation information according to the present invention;

7 is a detailed flowchart illustrating a web service searching process in a web service brokerage system among methods for providing web service evaluation information according to the present invention.

8 is a detailed flowchart illustrating a web service search result return process in a web service request system in a method for providing web service evaluation information according to the present invention;

* Explanation of symbols on the main parts of the drawing

11, 31: Web service providing system 12, 32: Web service intermediary system (UDDI)

13, 33: Web service request system 34: Evaluation information providing system

35: Evaluation Information Database

The present invention relates to a web service evaluation information providing system and a method thereof, and more particularly, to a web service request by linking an evaluation information providing system for evaluating and managing a web service in a web service system with a web service intermediation system (UDDI). The present invention relates to a web service evaluation information providing system and method for providing web service evaluation information when a system requests a web service.

In order to help the understanding of the present invention will be described with respect to the Web service technology. Looking at the evolution of the information technology (IT) environment, the first generation is the mainframe method, and the mainframe server centrally manages all the information, while the second generation is transferred to the client / server method. Recently, web-based open systems have become the mainstream of e-business, which is often referred to as website type or web application server (WAS) type.

As the information technology (IT) environment changes, the concept of a "web service" that allows various web applications that are not connected to each other on the web to communicate with each other while communicating with each other has recently attracted attention. Web services have been evaluated as "the second Internet revolution" and are expected to enter the full-scale market maturity in the future.

In addition, Web services are expected to be widely deployed as the basis for next-generation e-business, which is leading to fierce competition among web software related infrastructure software and development tools. It is also analyzed as a major factor driving the growth of the web services market.

In short, Web services can be described as service integration technologies that can automate tasks using data communication between different applications on heterogeneous platforms. Web services are becoming increasingly popular as various heterogeneous platform environments that dynamically interact on a network are becoming common. Web services also ensure interoperability so that programs written in separate languages on separate platforms can communicate with each other on a standards-based basis.

In summary, web services are technologies that enable data sharing and communication between applications across firewalls regardless of platform, implementation language, or network. Web service is a technology for application-to-application interaction, and is platform- and language-neutral because it follows XML-based standards.

In other words, in the existing web environment, when a user requests through the web, the web application returns the result through the web page, whereas in the web service environment, a client application, not the user, requests a web service application through the web ( Request) is sent and the result is returned.

Therefore, by using the web service technology, a client can call and use a previously developed web service application without having to develop a new application.

On the other hand, the description of such a web service includes a simple object access protocol (hereinafter referred to as "SOAP"), a web service registry (Universal Description Discovery, and Integration: referred to as "UDDI"), and the web. And a service description language (hereinafter, referred to as "WSDL").

First, the SOAP (Simple Object Access Protocol) will be described. Conventionally, the same concept exists in CORBA (Common Object Request Broker Architecture), but a framework using SOAP (Simple Object Access Protocol) is more scalable and flexible.

SOAP is a lightweight and simple XML protocol designed to exchange structured and typed information on the Web. Hypertext Transfer Protocol (HTTP), Transmission Control Protocol / Internet Protocol (TCP / IP), and Simple Mail Transfer Protocol (SMTP) It can be used in conjunction with existing Internet protocols such as Mail Transport Protocol (MIME) and Multipurpose Internet Mail Extensions (MIME), and supports a wide range of applications from messaging systems to remote procedure calls (RPCs). The purpose of such SOAP is to enable detailed and automated web services on the basis of shared and open web infrastructure, which can significantly reduce the overall cost for communication protocols.

In other words, in the past, a document or value requested through a browser of a computer is performed on the server side, and the HTML (HyperText Markup Language) document is transmitted as HTTP as a return value. Any program can use the Simple Object Access Protocol (SOAP) to remotely execute the desired function. In other words, a function implemented in a remote computer through SOAP (Simple Object Access Protocol) can be used as a function of its own.

For example, if you want to add an automatic calculation function to a word processor of a personal digital assistant (PDA), you simply need to call the calculation-related object of the server by receiving the location information and specification of the required function from the web service directory. Really distributed object service is realized through web service.

UDDI (Universal Description Discovery, and Integration) is a standard for data exchange. In other words, UDDI defines a service registry of available web services, which serves as a global electronic yellow page. It stores information about web services and searches only technical information of a web service providing system to provide a corresponding service. .

UDDI identifies web services in a registry so that programs that want to find them can easily find them and see what they do. The UDDI specification is a commonly adopted standard for web services. It is implemented as a UDDI business registry and is open to the public, allowing companies to register their web services.

The UDDI registry is simply a phone book. For example, the UDDI registry provides simple information about a registered web service, such as the job index of the phone book. That is, the UDDI registry contains the name and additional identifier of the web service service registrant (North American Industry Classification System (NAICS) code or Dun & Bradstreet DUNS number), the name and brief description of the web service, web service access information, and web service interface information. And so on.

Each registry that conforms to the UDDI specification runs on the operator site. The production sites have a master copy of the registry. However, sets of UDDI registries are replicated with each other. If the registry the business wants to find is on one production site, it first searches for the master copy, and also for copies passed from other UDDI registries.

As such, the UDDI specification defines how to register and retrieve web services in a UDDI-compliant registry. More precisely, the UDDI specification defines the UDDI schema and the UDDI API. The schema identifies the XML data structure for the item that represents the web service in the registry. The UDDI API also defines a SOAP message for registering and retrieving entries in the registry. In other words, SOAP is used to register a web service in the UDDI registry. It also uses SOAP to retrieve the web service from the UDDI registry, and after searching the web service, sends the request using SOAP.

Finally, the Web Service Description Language (hereinafter referred to as "WSDL") defines the SOAP message used to access the web service, the protocol for exchanging SOAP messages, and the Internet location from which the web service can be accessed. do. The WSDL descriptor can be located in UDDI or another directory service, and can be provided by a SOAP request response.

On the other hand, the configuration and operation of the conventional web service system with reference to Figures 1 and 2 as follows.

1 is a configuration diagram of an embodiment of a conventional web service system, and FIG. 2 is a service registration (publish) -search-request between a web service providing system and a web service intermediation system and a web service request system in a conventional web service system. One embodiment flow diagram for a service provision process.

As shown in FIG. 1, the conventional web service system includes a web service providing system 11, a web service intermediation system (UDDI) 12, and a web service request system 13.                         

The web service providing system 11 registers service description information, which is desired to be published among its web services, to the web service brokerage system (UDDI) 12 through a publishing application that is already provided (201). ). At this time, when the web service providing system 11 registers (publishes) the web service intermediation system (UDDI) 12 and receives authentication through input of an ID and password, the web service providing system 11 receives business service information and service description information (binding information). Get input.

In addition, the web service request system 13 provides a web service that wants to be provided with a desired service among a plurality of unspecified web services through a search application (Inquiry API) that is already provided. Search 202, 203, request a service from the corresponding web service providing system 11 based on the found service description (204), and receive a web service (205).

However, since the web service request system 13 can obtain information obtained from the web service intermediation system (UDDI) 12 by searching, the web service request system 13 includes only general information about the web service and service description information (binding information). There was a problem that the service request system 13 cannot selectively use a high quality web service.

In addition, there is a problem that the web service brokerage system (UDDI) 12 does not provide a mechanism for publishing the evaluation information of the registered web service to the web service request system 13.

The present invention has been proposed to solve the above problems, by linking the evaluation information providing system for evaluating and managing a web service in a web service system with a web service brokerage system (UDDI), the web service request system is a web service The purpose of the present invention is to provide a web service evaluation information providing system and method for providing web service evaluation information upon request.

The present invention for achieving the above object, Web service providing system for registering its own web service in a web service brokerage system in response to a request from the outside, and providing a web service in response to a request from the web service request system; Requesting a web service search to the web service intermediation system to receive a web service search result and evaluation information, and using the received web service search result and evaluation information, the web for requesting a web service to a corresponding web service providing system Service request system; Register a web service according to a registration request from the web service providing system, request an evaluation of the registered web service with an evaluation information providing system, and search for a web service according to a web service search request from the web service request system. And requesting the evaluation information of the searched web service to the evaluation information providing system and returning the result, and then transmitting the web service search result and the evaluation information to the web service request system. ; Evaluate the web service according to the web service evaluation request from the web service intermediation system, calculate a rating, and store the result in an evaluation information database, and retrieve the evaluation information database according to the web service evaluation information request from the web service intermediation system. The evaluation information providing system for returning the result; And the evaluation information database storing web service evaluation information according to the control of the evaluation information providing system, wherein the web service intermediation system is configured to provide a web service through a publishing application from the web service providing system. After receiving the registration request, after registering the web service in its own UDDI registry, the service key (Service Key), service basic information, service technology information for the web service to the evaluation information providing system to request for evaluation It features.

On the other hand, the present invention, the web service brokering system registers a web service according to a registration request from the web service providing system, and a request for evaluation of the registered web service to the evaluation information providing system; A second step of the evaluation information providing system evaluating and evaluating a web service according to a website evaluation request from the web service intermediation system, and storing the web service in an evaluation information database; And searching the web service in its registry according to the web service search request from the web service requesting system, and requesting the evaluation information providing system for evaluation information about the searched web service. And after receiving, returning the web service search result and the evaluation information accordingly to the web service request system, wherein the first step includes registering the application by the web service intermediation system from the web service providing system. Publishing API), and after registering the web service in its own UDDI registry, the service key (Service Key), basic service information, service description information for the web service, the evaluation information providing system It is characterized by requesting an evaluation by passing to.

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The above-mentioned objects, features and advantages will become more apparent from the following detailed description in conjunction with the accompanying drawings. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

3 is a configuration diagram of an embodiment of a web service evaluation information providing system according to the present invention.

As shown in FIG. 3, the web service evaluation information providing system according to the present invention includes a web service providing system 31, a web service intermediation system (UDDI) 32, a web service request system 33, and evaluation information. Providing system 34.

The web service providing system 31, the web service brokerage system (UDDI) 32, and the web service request system 33 of the present invention perform the same functions as in the conventional web service system. However, in the present invention, the web service intermediation system (UDDI) 32 may request an evaluation with the evaluation information providing system 34 for the web service that has received the registration request, and evaluates at the request of the web service request system 33. Evaluation information retrieved from the information providing system 34 can be provided.

The evaluation information providing system 34 manages the evaluation information database 35 and provides evaluation information of the web service in response to a request from the web service intermediation system (UDDI) 32. That is, the evaluation information providing system 34 is based on the service information and technical information of the web service according to a request from the web service intermediation system (UDDI) 32, service provider, service access authority, response time, state maintenance, etc. After checking, the grade is calculated and stored together with the service key in the evaluation information database 35.

The service key is a value that the web service mediation system (UDDI) 32 transmits together with the evaluation information providing system 34 when the web service evaluation request is made. This value (service key) is also used later when the web service request system 33 requests a web service search to the web service intermediation system (UDDI) 32. That is, when the web service intermediation system (UDDI) 32 receives a web service search request from the web service request system 33, first, service general information and technical information are searched in its registry and the evaluation information is evaluated. The request is made to the providing system 34 (search). At this time, the service key is delivered with the evaluation information request.

4 is a flowchart illustrating a method for providing web service evaluation information according to the present invention.

First, the web service providing system 31 registers service description information, which is desired to be published among its web services, in the web service intermediation system (UDDI) 32 through a publishing application that is already provided. (401).

Then, the web service intermediation system (UDDI) 32 requests an evaluation for the web service registered in the evaluation information providing system 34 (402), and refers to the service key. The evaluation information providing system 34 evaluates the corresponding web service based on the service information and the technical information of the web service according to a request from the web service intermediation system (UDDI) 32, and then calculates a rating to evaluate the evaluation information database ( 35) (403).

Subsequently, the web service request system 33 requests the web service broker system (UDDI) 32 to search for a desired web service among the unspecified number of scattered web services through a search application (Inquiry API) already provided. (404).

Then, the web service brokerage system (UDDI) 32 searches the web service from its registry according to the web service search request, requests the evaluation information for the searched web service to the evaluation information providing system 34 and returns the result. Receive (405, 406). In operation 407, the registry search result and evaluation information thereof are returned to the web service request system 33.

Then, the web service request system 33 requests the service to the corresponding web service providing system 31 using the returned web service search result and the evaluation information according thereto to receive the desired web service (408, 409).

5 is a structural diagram of an embodiment of a registry and evaluation information database of a web service brokering system (UDDI) according to the present invention.

The information provided in the registry of the Web Services Brokerage System (UDDI) can be used to perform three types of searches: That is, a white page search containing addresses, contacts, known identifiers, a yellow page search based on standard classification methods such as "NAICS", "ISO3166", "UNSPSC", and references to the interface specifications of web services, Green page search that exposes web service by business such as pointer to various files and URL-based search mechanism support.

As shown in FIG. 5, "50" shows the structure of a registry included in the web service intermediation system (UDDI) 32. As shown in FIG. In particular, since the service key 521 is a primary key 521 of the registry and a foriegn key 531 of the evaluation information database 35, the web service evaluation / evaluation information request is requested. Value is transmitted to the city evaluation information providing system 34. In addition, since the service key 5212 is a foriegn key of the evaluation information database 35, the service key 5212 provides a mechanism for simultaneously retrieving evaluation information when searching the registry.

As shown in FIG. 5, the registry 50 included in the web service brokerage system (UDDI) 32 may include the name and additional identifier of the web service service registrant (North American Industry Classification System (NAICS) code or Dun & Bradstreet DUNS). Service key field 521 for storing a web service name, a name field 522 for storing a name of a web service, a service description field 523 for storing a brief description of the web service, web service access information or web. A binding information field 524 for storing interface information of a service and the like.

In addition, as shown in Fig. 5, the evaluation information database 35 according to the present invention uses a service key 521, which is a primary key of the UDDI registry, as a forin key 531. Grade field 532 for indicating a grade, a Date field 533 for indicating a date when a website is evaluated, and service description information received from the web service brokerage system 32. Service information (Info) field 534 for storing the information.

On the other hand, in the registration application (Publishing API) and the search application (Inquiry API) used in the web service brokerage system 32, a function of accessing the evaluation information database 35 through the evaluation information providing system 34 is added. This part will be described in detail with reference to FIGS. 6 to 8 to be described later.

6 is a detailed flowchart illustrating a web service registration process in the web service evaluation information providing method according to the present invention.

First, when the web service providing system 31 requests registration to a web service broker system (UDDI) 32 through a publishing application (Publishing API) (601), the web service broker system (UDDI) 32 has its own. After registering the web service in the UDDI registry (602), the service key (Service Key), service basic information, service description information is delivered to the evaluation information providing system 34 to request the evaluation (603).

Then, the evaluation information provider 34 evaluates the authority, response time, state maintenance, company information, etc. for the web service, calculates a grade (604), and stores it in the evaluation information database 35 (605).

Then, if the web service request system 33 wants to search not only service general information but also evaluation information, the web service intermediation system (UDDI) 32 uses an evaluation information providing system (Inquiry Application) to be described later ( 34) access the evaluation information database 35 to query the evaluation information.

7 is a detailed flowchart illustrating a web service searching process in a web service mediation system in a method of providing web service evaluation information according to the present invention. The web service mediation system (UDDI) 32 desires a web service through UDDI. To implement a search application (Inquiry API) that searches for, based on the following (Find) function.

First, when the web service brokerage system (UDDI) 32 receives a request for a web service search from the web service request system 33, performs a search_business 701 and a service search (find_service) 702. It is determined whether the evaluation information is requested (703).

As a result of the determination (703), if the evaluation information is requested, the evaluation information for the searched web service is searched (find_Grade) 704, the evaluation information binding (find_grade_binding) 705, and the technical information binding (706). do. Then, the web service description language (WSDL) is searched through the t model (find_tModel) (707).

On the other hand, if the determination result 703, the evaluation information is not requested, the technical information binding (find_binding) 706 is performed, and the WSDL (Web Service Description Language) is searched through the t model (find_tModel) ( 707).

The tModel is one of the data constituting the UDDI registry. The tModel is a description of the description or technical characteristics of the specification of the web service, indicates the technical specification of the web service, and the technical specification specific to the web service request system 33. It makes it easier to find web services that are compatible with.

In addition, the Web Service Description Language (WSDL), as described above, defines the SOAP message used to access a web service, the protocol for exchanging SOAP messages, and the Internet location from which the web service can be accessed.

The Get function in the web service request system 33 will be described later with reference to FIG. 8.

8 is a detailed flowchart illustrating a web service search result return process in a web service request system among web service evaluation information providing methods according to the present invention.

First, the web service request system 33 performs a business acceptance (get_business) 801 and a service acceptance (get_service) 802, and then it is determined whether the evaluation information is requested (803).

As a result of the determination 803, when the evaluation information is requested, the evaluation information for the web service is accepted (get_Grade_detail) 804, the evaluation information binding (get_grade_binding) 805, and the technical information binding (get_binding) 806 are performed. . In addition, a WSDL (Web Service Description Language) is obtained through a tModel (get_tModel) 807.

On the other hand, if the determination result 803, the evaluation information is not requested, the technical information binding (find_binding) 806 is performed, and the WSDL (Web Service Description Language) is obtained through the t model (get_tModel). (807).

The method of the present invention as described above may be implemented as a program and stored in a computer-readable recording medium (CD-ROM, RAM, ROM, floppy disk, hard disk, magneto-optical disk, etc.). Since this process can be easily implemented by those skilled in the art will not be described in more detail.

The present invention described above is capable of various substitutions, modifications, and changes without departing from the spirit of the present invention for those skilled in the art to which the present invention pertains. It is not limited by the drawings.

As described above, the present invention provides a more objective web service evaluation information by providing a web service request system by integrating an evaluation information providing system capable of evaluating a web service and managing a rating. It can save cost and time, and improve the reliability of web services and the utilization of web services.

In addition, the present invention has the effect of ultimately providing more reliable web service distribution and high quality of service (QoS) to both the web service providing system and the web service requesting system.

Claims (11)

delete A web service providing system for registering a web service to a web service intermediation system according to a request from the outside and providing a web service according to a request from the web service request system; Requesting a web service search to the web service intermediation system to receive a web service search result and evaluation information, and using the received web service search result and evaluation information, the web for requesting a web service to a corresponding web service providing system Service request system; Register a web service according to a registration request from the web service providing system, request an evaluation of the registered web service with an evaluation information providing system, and search for a web service according to a web service search request from the web service request system. And requesting the evaluation information of the searched web service to the evaluation information providing system and returning the result, and then transmitting the web service search result and the evaluation information to the web service request system. ; Evaluate and evaluate the web service according to the web service evaluation request from the web service intermediation system, and store the result in the evaluation information database, and search the evaluation information database according to the web service evaluation information request from the web service intermediation system. The evaluation information providing system for returning the result; And Including the evaluation information database for storing the web service evaluation information under the control of the evaluation information providing system, The web service intermediary system, Receives a request for registration of a web service through a publishing application from the web service providing system, registers the web service in its own UDDI registry, and then includes a service key, service basic information, Web service evaluation information providing system, characterized in that for requesting evaluation by delivering service technology information to the evaluation information providing system. The method of claim 2, The evaluation information providing system, After receiving the service key (Service Key), basic service information, and service technology information for the web service from the web service intermediation system, the authority, response time, state maintenance, company information for the web service is evaluated and rated Web service evaluation information providing system, characterized in that calculated and stored in the evaluation information database. The method of claim 3, wherein The evaluation information database, A service key field for storing a service key received from the web service intermediation system; A Grade field for storing a grade calculated as a result of the website evaluation; A Date field for storing a date of performing a website evaluation; And Service information (Info) field for storing service description information received from the web service brokerage system Web service evaluation information providing system comprising a. The method of claim 4, wherein The service key field is Web service evaluation information providing system, characterized in that it is a key for a service key (Service Key) that is a primary key in the UDDI registry of the web service brokerage system. delete A first step of the web service intermediation system registering the web service according to a registration request from the web service providing system and requesting an evaluation of the registered web service to an evaluation information providing system; A second step of the evaluation information providing system evaluating and evaluating a web service according to a website evaluation request from the web service intermediation system, and storing the web service in an evaluation information database; And The web service mediation system searches for a web service in its registry according to a web service search request from the web service request system, requests the evaluation information providing system for evaluation information on the retrieved web service, and returns the result. After receiving, the third step of delivering the web service search results and the evaluation information according to the web service request system, The first step is, The web service broker system receives a request for registration of a web service through a publishing application from the web service providing system, registers the web service in its UDDI registry, and then provides a service key for the web service. ), A method for providing evaluation information in a web service evaluation information providing system, characterized in that requesting evaluation by delivering service basic information and service technology information to the evaluation information providing system. The method of claim 7, wherein The second step, After the evaluation information providing system receives the service key (Service Key), service basic information, service technology information for the web service from the web service brokerage system, authority, response time, state maintenance, company for the web service Evaluation information providing method in a web service evaluation information providing system, characterized in that to evaluate the information to calculate the rating and to store in the evaluation information database. The method of claim 8, The third step, A fourth step in which the web service intermediation system is requested to search for a web service from the web service request system; A fifth step of determining whether the web service intermediation system requests evaluation information after performing a business search (find_business) and a service search (find_service); As a result of the determination of the fifth step, if the evaluation information is requested, the evaluation information of the searched web service is searched (find_Grade), the evaluation information binding (find_grade_binding) and the technical information binding (find_binding) are performed, and then the tModel A sixth step of searching for a web service description language (WSDL) through a find_tModel; As a result of the determination of the fifth step, if the evaluation information is not requested, after performing the technical information binding (find_binding), the web service description language (WSDL: Web Service Description Language) is searched through the t model (find_tModel). A seventh step; And An eighth step of delivering the web service search result and evaluation information according to the web service intermediation system to the web service request system; Evaluation information providing method in a web service system comprising a. The method of claim 9, A ninth step of determining, by the web service request system, requesting evaluation information after performing business acceptance (get_business) and service acceptance (get_service) from the web service intermediation system; As a result of the determination of the ninth step, if the evaluation information is requested, the evaluation information for the web service is received (get_Grade), the evaluation information binding (get_grade_binding) and the technical information binding (get_binding) are performed, and then the t model (tModel) is performed. A tenth step of obtaining a web service description language (WSDL) through; As a result of the determination of the ninth step, if the evaluation information is not requested, the eleventh of performing a web service description language (WSDL) through a t model after performing technology information binding (find_binding) step; And A twelfth step of the web service request system requesting a service from a web service providing system using a web service search result and evaluation information (WSDL) received from a web service brokerage system; Evaluation information providing method in a web service system further comprising. delete

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