JP2004280398A - Service provision side program, user side program and method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a service provision side program, user side program and method for reducing the labor of an application developer to prepare a Web service access mechanism. <P>SOLUTION: An access application 52 as a program for access prepared by a Web service provision side is downloaded and started by a Web service use side, and a Web service 51 is used through access applications 52<SB>1</SB>and 52<SB>2</SB>. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a service provider program, a user program, and a method used for a Web service provider or a user.
[0002]
[Prior art]
In recent years, there has been an increasing demand for technology for flexibly linking systems on the Internet. Web services have attracted attention as a technology that meets such demands.
[0003]
The Web service is a technology for transmitting and receiving a message in an Extensible Markup Language (XML) format on the Internet and linking the systems. The Web service is more convenient than a Web system (Web application) that does not cooperate with another system because the service providing system and the using system can directly cooperate with each other by an XML message.
[0004]
In the Web service, an XML document is transmitted and received on an Internet standard protocol such as HTTP (Hypertext Transfer Protocol). Furthermore, since the Web service uses the Internet, unlike the EDI (Electronic Data Interchange) conventionally used for data exchange between companies, there is an advantage that the construction cost is low.
[0005]
Various standardizations have been advanced for such Web services in order to link each system quickly and flexibly (for example, see Non-Patent Document 1). The main standards include XML document format and business process standards, messaging protocol standards for transmitting and receiving XML documents, and registry standards for registering / searching services.
[0006]
Next, a Web system that does not cooperate with another system and a Web service that directly cooperates with another system as described above will be specifically described.
(Web system)
As shown in FIG. 7, when using a conventional Web system, the client terminal 10 starts up a WWW browser 11 by a user's operation, and provides a Web site that provides a service via the in-house network Nw1 and the Internet Nw2. 21 is accessed by designating a URL.
[0007]
Next, the client terminal 10 downloads the HTML-based Web page 21 a from the Web site 21. Thereafter, the client terminal 10 accesses the service processing Web application 22 behind the client via this Web page 21a and uses the service.
[0008]
However, as described above, the Web system cannot directly cooperate with another external application. Therefore, in order to capture the processing result of the Web system into the external application 12, the user himself / herself must manually input the processing result into the business application 12.
[0009]
An example will be described using a business trip application system. The business trip application system is a business application 12 for making a business trip application such as a business trip schedule or ticket fee settlement when a business trip is required. The user inputs a business trip schedule and a ticket fee on the business trip application system.
[0010]
If it is possible to search for a timetable such as a bullet train or to reserve a ticket directly on the business trip application system, it would be very easy for the user. However, such a search function and a reservation function do not exist in the business trip application system. Therefore, the user uses services provided on the Web, that is, Web systems. The user newly launches the WWW browser 11, accesses a Web application 22 such as a railway reservation center, searches a timetable, and reserves a ticket. Once a ticket has been reserved, the result cannot be taken directly into the business trip application system, so the user must manually enter the data.
[0011]
(Web service)
As shown in FIG. 8, when using the Web service system, unlike the above-described Web system, the client terminal 10 can directly access the Web service 32 from the external application 13. Since the external application 13 and the Web service 32 can cooperate with each other, the result obtained by the user using the Web service 32 can be automatically taken into the external application 13 as it is.
[0012]
Similarly, a business trip application system will be described as an example. When using the Web service, the user can directly access the Web service 32 on the Web by clicking a button or following a link from the application 13 of the business trip application system. Then, for example, when a timetable is searched for on the Web service 32 of the railway reservation center and a ticket is reserved, if the confirm button is pressed, the reservation result can be taken into the business trip application system as it is. Therefore, the user does not need to copy the reservation data, and can apply for a business trip by pressing only the application button.
[0013]
The Web service shown in FIG. 8 is considered to have no problem because the user can save time and effort in inputting work as compared with the Web system shown in FIG.
[0014]
However, according to the study of the present inventor, there is a problem that the developer of the external application must prepare a user interface (Web service access mechanism) for using the Web service 32 from the external application 13.
[0015]
[Non-patent document 1]
Masataka Yamada and Zunyi Hiroshi, "Technical Trends of XML Web Services", Toshiba Review, Technical Planning Office, Toshiba Corporation, February 1, 2003, Vol. 58, No. 2, p. 3-6.
[0016]
[Problems to be solved by the invention]
As described above, the conventional Web system has a problem that the cooperation between the Web system and another external application cannot be performed. This problem of the Web system has been solved by the Web service.
[0017]
However, according to the present inventor's consideration, the Web service has a problem that a developer of the external application must prepare a Web service access mechanism for using the Web service from the external application.
[0018]
The present invention has been made in consideration of the above circumstances, and has as its object to provide a service providing program, a user program, and a method that can reduce the time and effort required for an application developer to prepare a Web service access mechanism.
[0019]
[Means for Solving the Problems]
A first invention is a service providing program used in a server device that provides a Web service. The service providing program is used when a computer of the server device receives a use request including a user ID issued in advance. Means for returning the address information of the access program to the Web service corresponding to the request to the transmission source of the use request; upon receiving the connection request including the user ID and the address information, the access program corresponding to the address information is Means for returning to the transmission source of the connection request, upon receiving a notification that the processing result of the Web service processing is determined based on the processing of the returned access program, stores the set of the processing result and the user ID in the memory Upon receiving a result inquiry including the user ID, the memory based on the user ID Locate a resulting processing result means to reply to the sender of the query results to the service provider program for functioning as a.
[0020]
Further, a second invention is a service use side program used for a client device that uses a Web service provided from a server device, wherein the computer of the client device includes a user ID issued in advance. Means for transmitting a use request to the server device, receiving address information from the server device, means for transmitting a connection request including the address information and the user ID to the server device, This is a service use side program for storing a program in a memory and functioning as a means for activating an access program in the memory.
[0021]
Therefore, in the first and second inventions, the side using the Web service downloads and starts the access program prepared by the side providing the Web service, and uses the Web service via the access program.
[0022]
As described above, since the Web service providing side provides the access program, it is possible to reduce the trouble of the application developer preparing the Web service access mechanism.
[0023]
In the first and second inventions, the name is expressed as “... Program”. However, the present invention is not limited to this, and may be expressed by another name such as “system”, “apparatus”, or “computer-readable storage medium”. Needless to say, this is acceptable.
[0024]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings, but before that, an outline of the present invention will be described.
FIG. 1 is a schematic diagram showing a schematic configuration of a Web service system according to each embodiment of the present invention. In this Web service system, a client terminal 40 having an external application 41 using a Web service is connected to a server 50 having a Web service 51 main body and an access application 52 via networks Nw1 and NW2.
[0025]
The access application 52 has an access mechanism for using the Web service 51.
[0026]
The client terminal 40 issues an access request to the server device 50 from the external application 41 by a user operation (# 1), downloads the access application 52 from the server device 50 (# 2), and via the access application 52 It accesses the Web service (# 3) and receives the processing result of the Web service 51 (# 4).
[0027]
According to such an outline of each embodiment, since the side providing the Web service 51 provides the access application 52, it is possible to reduce the trouble of preparing the Web service access mechanism by the developer of the external application 41.
[0028]
Next, a first embodiment of the present invention will be described based on the above summary.
(1st Embodiment)
FIG. 2 is a schematic diagram showing the configuration of the Web service system according to the first embodiment of the present invention. In this Web service system, a client terminal 40 of a certain company is connected to a server device 50 via an in-house network Nw1 and the Internet Nw2. Note that such a client terminal 40 and server device 50 can be realized by a combination of hardware and software. However, a part configured by software includes a program for realizing a corresponding function stored in a storage medium in advance. Alternatively, it is realized by being installed in a computer of each device 40, 50 from a network.
[0029]
Here, the client terminal 40 includes a business trip application system 41 and a Web browser 42.
The business trip application system 41 includes a business trip application main function unit 41a, a service access unit 41b, and an activation unit 41c.
[0030]
The business trip application main function unit 41a has a function of executing business trip application processing as an in-house business application. Here, it is assumed that the business trip application process is a process of creating a business trip application form using the search result of the timetable and the ticket reservation result.
[0031]
The service access unit 41b transmits a use request including a previously issued user ID to the server device 50, and upon receiving a URL (address information) from the server device 50, activates the URL and the user ID with the activation unit 41c. And a function to send it to
[0032]
Specifically, the service access unit 41b assembles, for example, a SOAP (Simple Object Access Protocol) message and transmits it to the server device 50, and a function of interpreting a SOAP response message from the server device 50 and extracting necessary data. And a SOAP program having the following.
[0033]
Upon receiving the URL and the user ID from the service access unit 41b, the activation unit 41c activates the Web browser 42, sends the URL and the user ID to the Web browser 42, and sends the URL and the user ID from the server device 50 via the Web browser 42. Access application 52 ₁ , 52 ₂ And the access application 52 obtained. ₁ , 52 ₂ Is activated by the Web browser 42.
[0034]
The Web browser 42 is controlled by the activation unit 41c in addition to the normal browsing function, ₁ , 52 ₂ And a function for executing ₁ , 52 ₂ Web service application 51 ₁ , 51 ₂ After the processing of (1), a user ID obtained from the business application 41 is transmitted to the server device 50, and the processing result received from the return server device 50 is displayed on the business application 42. It should be noted that seamless transfer of data between the Web service and the business application can be realized by a set of the user ID and the processing result.
[0035]
The server device 50 includes a timetable (search) service 51. ₁ , Ticket reservation service 51 ₂ , Timetable access application 52 ₁ , Ticket reservation access application 52 ₂ , A service management application 53, a Web server (application) 54, and a service site 55.
[0036]
Timetable (search) service 51 ₁ Is a type of Web service, and the timetable access application 52 ₁ It is an application that has a function to search a timetable under the control of.
Ticket reservation service 51 ₂ Is a kind of Web service, and the ticket reservation access application 52 ₂ Is an application having a function of reserving a ticket under the control of.
[0037]
Timetable access application 52 ₁ Is the timetable service 51 ₁ It has an access function to use.
Ticket reservation access application 52 ₂ Is the ticket reservation service 51 ₂ It has an access function to use.
[0038]
The service management application 53 includes an ID issuing unit 53a, a service management unit 53b, and a result holding unit 53c.
[0039]
The ID issuing unit 53a has a function of issuing a unique user ID.
[0040]
The service management unit 53 b ₁ , 51 ₂ More specifically, when a use request including a previously issued user ID is received, the Web service 51 corresponding to the use request is managed. ₁ , 51 ₂ Access application 52 ₁ , 52 ₂ When a connection request including a user ID and a URL is received, the access application 52 corresponding to the URL receives the connection request including the user ID and the URL. ₁ , 52 ₂ To the sender of the connection request.
[0041]
The result storage unit 53c stores the returned access application 52 ₁ , 52 ₂ Receiving a notification that the processing result of the Web service processing has been determined based on the processing described above, a function for storing a set of the processing result and the user ID in a memory (not shown), and a result inquiry including the user ID Is received, the memory is searched based on the user ID, and the obtained processing result is returned to the transmission source of the result inquiry.
[0042]
The Web server (application) 54 has a function of receiving an HTTP request from the client terminal 40, and serves as an interface between the client terminal 40 and each of the elements 51 to 53 in the service site 55.
[0043]
The service site 55 is a site including the above-described elements 51 to 54 in order to provide a Web service to a user.
[0044]
Next, the operation of the Web service system configured as described above will be described with reference to the sequence diagrams of FIGS. This description will be made taking an example of a case where a user searches for a timetable and reserves a ticket in a business trip application system, which is an in-house business application, makes a payment in the business trip application system, and applies for a business trip. .
[0045]
As shown in FIG. 3, when the client terminal 40 starts up the business trip application system 41 by a user's operation, when the use request button is clicked, the service management application 53 through the Web server 54 of the service site 55 is clicked. And issues a Web service use request (ST1 to ST2).
[0046]
Upon receiving the use request, the service management application 53 issues a user ID using the ID issuing unit 53a to identify the user, and returns the user ID to the client terminal 40 (ST3).
[0047]
Upon receiving the user ID, the client terminal 40 receives the user ID and the timetable service 51. ₁ Is transmitted to the service management application (ST4 to ST5).
[0048]
The service management application 53 checks the user ID and checks the desired timetable service 51. ₁ Timetable access application 52 for accessing to ₁ Is returned to the client terminal 40 (ST6).
[0049]
In the client terminal 40, when the service access unit 41b receives the URL, it sends an activation request to the activation unit 41c using a set of the URL and the user ID (ST7).
[0050]
When activated, the activation unit 41c activates the Web browser 42 to cause the Web browser 42 to transmit a connection request including the URL and the user ID to the service management application 53 (ST8), and the timetable access application 52 ₁ Is downloaded from the server device 50 (ST9).
[0051]
The Web browser 42 downloads the timetable access application 52 ₁ Is executed and the timetable service 51 of the server device 50 is operated by the user. ₁ To search for a time such as a train on the scheduled business trip date (ST10 to ST11), and receive the search result (ST12).
[0052]
When the user determines the time of a train or the like and completes the desired processing, the Web browser 42 sends a notification that the processing result has been determined by a click operation of a button by the user to the timetable service 51 of the server device 50. ₁ (ST13 to ST14).
[0053]
Timetable service 51 ₁ Sends the processing result determined by the user to the result holding unit 53c together with the user ID, and ends the processing. The result holding unit 53c holds a set of the processing result and the user ID in a memory (not shown).
[0054]
Subsequently, the client terminal 40 uses the user ID to transmit the processing result to the business trip application system 41 from the business trip application system 41 by using the user ID. ₁ (Step ST15).
[0055]
Timetable service 51 ₁ Sends this result inquiry to the result holding unit 53c. The result holding unit 53c checks the user ID in the result inquiry, searches the memory using the user ID as a key, and returns a processing result to the client terminal 40 (ST16).
[0056]
The business trip application system 41 of the client terminal 40 receives the processing result and displays it on the screen.
[0057]
Next, as shown in FIG. 4, the client terminal 40 determines the schedule of the business trip on the business trip application system 41 by the operation of the user, and then reserves a ticket for the Shinkansen.
[0058]
The client terminal 40 accesses the service management application 53 again using the user ID by the operation of the user, and obtains the user ID and the ticket reservation service 51. ₂ Is transmitted to the service management application 53 (ST17).
[0059]
The service management application 53 checks the user ID and checks the desired ticket reservation service 51 ₂ Ticket reservation access application 52 for accessing to ₂ Is returned to the client terminal 40 (ST18).
[0060]
Upon receiving the URL, the business trip application system 41 specifies a set of the URL and the user ID to the active Web browser 42 (ST19).
[0061]
The Web browser 42 transmits a connection request including the URL and the user ID to the service management application 53 (ST20), and the ticket reservation access application 52 ₂ Is downloaded from the server device 50 (ST21).
[0062]
The Web browser 42 downloads the ticket reservation access application 52 ₂ Is executed, and the ticket reservation service 51 of the server device 50 is operated by the user. ₁ With the timetable service 51 described above. ₁ Based on the result obtained from the above, the ticket is reserved and the reservation contents are determined (ST22 to ST23).
[0063]
Ticket reservation service 51 ₂ Sends the processing result determined by the user to the result holding unit 53c together with the user ID, and ends the processing. The result holding unit 53c holds a set of the processing result and the user ID in a memory (not shown).
[0064]
Subsequently, the client terminal 40 uses the user ID to issue a ticket reservation service 51 from the business trip application system 41 by a user's operation in order to take the processing result into the business trip application system 41. ₂ (ST24).
[0065]
Ticket reservation service 51 ₂ Sends this result inquiry to the result holding unit 53c. The result holding unit 53c confirms the user ID in the result inquiry, searches the memory using the user ID as a key, and returns a processing result to the client terminal 40 (ST25).
[0066]
The business trip application system 41 of the client terminal 40 receives the processing result and displays it on the screen. The user confirms the displayed result and applies for a business trip.
[0067]
As described above, according to the present embodiment, the access application 52 as an access program prepared by the side providing the Web service ₁ , 52 ₂ Is downloaded and activated by the side using the Web service, and the access application 52 is downloaded. ₁ , 52 ₂ Web service 51 via ₁ , 51 ₂ Use
[0068]
As described above, since the Web service providing side provides the access program, it is possible to reduce the trouble of the application developer preparing the Web service access mechanism.
[0069]
Supplementally, in the present embodiment, the superior point of the Web service of flexible system cooperation and the superior point of the Web system providing the user interface are successfully combined, so that a more convenient Web service can be used. .
[0070]
This effect can be summarized as follows from the viewpoint of the developer of the system using the Web service and the service provider.
[0071]
That is, the developer of the system using the Web service can easily perform the cooperation between the Web service and other applications. Also, since an interface for using the Web service is prepared in advance for the system developer, there is no need to create a user interface, which can lead to a reduction in development costs.
[0072]
On the other hand, the service provider can expect an increase in the number of users of the Web service because the system developer has an advantage as described above.
[0073]
(Second embodiment)
FIG. 5 is a schematic diagram showing the configuration of a Web service system according to the second embodiment of the present invention. The same parts as those in FIG. 2 are denoted by the same reference numerals, and detailed description thereof will be omitted. I will mainly mention.
[0074]
That is, the present embodiment is a modification of the first embodiment, in which the ID issuing unit 53a of the server device 50 is omitted and a third party device 60 having an ID issuing unit 61 is provided.
[0075]
Here, the third-party organization device 60 is a device operated by a third-party organization that issues a reliable user ID, such as an organization Verissign that certifies a public key by a public key method. .
[0076]
The ID issuing unit 61 has the function of the above-described ID issuing unit 53a. Specifically, upon receiving a use request that does not include the user ID, the ID issuing unit 61 uses the ID unique to the user based on the use request. It has a function of issuing a user ID and returning the obtained user ID to the sender of the use request.
[0077]
Next, the operation of the Web service system configured as described above will be described with reference to the flowchart of FIG.
When the client terminal 40 starts up the business trip application system 41 by a user's operation, the use request button is clicked to access the third party device 60 and issue a Web service use request (ST31). ).
[0078]
Upon receiving the usage request, the third party organization device 60 issues a user ID using the ID issuing unit 61 to identify the user, and returns the user ID to the client terminal 40 (ST32).
Hereinafter, similarly to the first embodiment, the processing after step ST4 is executed.
[0079]
As described above, according to the present embodiment, in addition to the effects of the first embodiment, it is not necessary for each service providing site to individually issue and manage a user ID, and the process of issuing and managing the user ID is eliminated. Can be omitted.
[0080]
The above embodiments may be modified as follows.
[0081]
In each embodiment, the user uses the Web service provided by one service site 55, but is not limited to this, and may use some Web services from a large number of service providing sites. As described above, when another service providing site is used, a unique user ID issued from the service providing site is obtained, and the Web service can be used by using the unique user ID as described above.
[0082]
Further, the business trip application system 41 of each embodiment is not a Web application running on the Web browser 42 but an application independent of the Web browser 42.
[0083]
However, the case where the application 41 using the Web service 51 is implemented as a Web application is also included in the present invention. In this case, since both the business trip application system 41 and the web service access application 52 are executed on the web browser 42, the application is easier to use for the user.
[0084]
Also, the user ID can be of any format. For example, a simple character sequence or an encrypted personal certificate can be used as a user ID. In the case of a Web system, there is a mechanism Cookie for specifying a user. The server device 50 issues a Cookie having user information (Browser) and sends it to the business application, and the business application accesses the server device 50 using the Cookie. As described above, the case where Cookie is used as the user ID is also included in the present invention.
[0085]
Further, in each embodiment, the user ID is unified by the service management application 53. However, since the Web service management application does not always exist, the individual Web service itself is individually assigned to the user ID. May be issued. Thus, the case where each Web service issues a user ID is also included in the present invention.
[0086]
Further, in each embodiment, SOAP is used. SOAP is an XML-based communication protocol and is adopted as a standard communication protocol for Web services. SOAP is very flexible, and any type of document can be carried in a SOAP message. However, in each embodiment, the SOAP protocol is adopted as the communication protocol, but the present invention is not limited to this. Use of a protocol other than SOAP is also included in the present invention.
[0087]
In the first embodiment, the case where the user ID and the access application 52 are separately requested from the server device 50 has been described. However, the present invention is not limited thereto. May be modified as required. Similarly, in the first embodiment, the case where the user ID and the access application 52 are separately transmitted from the server device 50 has been described. However, the present invention is not limited thereto. It may be modified to be transmitted from the device 50.
[0088]
The method described in each of the above-described embodiments includes, as programs that can be executed by a computer, a magnetic disk (floppy (registered trademark) disk, hard disk, or the like), an optical disk (CD-ROM, DVD, or the like), a magneto-optical disk ( MO) and a storage medium such as a semiconductor memory.
[0089]
The storage medium may be in any form as long as it can store a program and can be read by a computer.
[0090]
Further, an OS (Operating System) running on the computer based on an instruction of a program installed in the computer from the storage medium, MW (Middleware) such as database management software, network software, etc. realize the present embodiment. May be partially executed.
[0091]
Further, the storage medium in the present invention is not limited to a medium independent of a computer, but also includes a storage medium in which a program transmitted via a LAN, the Internet, or the like is downloaded and stored or temporarily stored.
[0092]
Further, the number of storage media is not limited to one, and the case where the processing in the present embodiment is executed from a plurality of media is also included in the storage medium of the present invention, and any media configuration may be used.
[0093]
The computer according to the present invention executes each process according to the present embodiment based on a program stored in a storage medium, and includes a device such as a personal computer and a system in which a plurality of devices are connected to a network. Or any other configuration.
[0094]
Further, the computer in the present invention is not limited to a personal computer, but also includes an arithmetic processing unit, a microcomputer, and the like included in an information processing device, and is a general term for devices and devices capable of realizing the functions of the present invention by a program. .
[0095]
Further, the present invention is not limited to the above embodiments as described above, and can be variously modified in an implementation stage without departing from the gist thereof. In addition, the embodiments may be implemented in appropriate combinations as much as possible, in which case the combined effects can be obtained. Furthermore, the above embodiments include inventions at various stages, and various inventions can be extracted by appropriately combining a plurality of disclosed constituent elements. For example, when an invention is extracted by omitting some constituent elements from all constituent elements described in the embodiment, when implementing the extracted invention, the omitted part is appropriately supplemented by well-known conventional techniques. It is something to be done.
[0096]
In addition, the present invention can be variously modified and implemented without departing from the gist thereof.
[0097]
【The invention's effect】
As described above, according to the present invention, it is possible to provide a service providing program, a user program, and a method that can reduce the time and effort required for an application developer to prepare a Web service access mechanism.
[Brief description of the drawings]
FIG. 1 is a schematic diagram showing a schematic configuration of a Web service system according to each embodiment of the present invention.
FIG. 2 is a schematic diagram illustrating a configuration of a Web service system according to the first embodiment of the present invention.
FIG. 3 is a flowchart for explaining an operation in the embodiment.
FIG. 4 is a flowchart for explaining an operation in the embodiment.
FIG. 5 is a schematic diagram illustrating a configuration of a Web service system according to a second embodiment of the present invention.
FIG. 6 is a flowchart for explaining an operation in the embodiment.
FIG. 7 is a schematic diagram for explaining a general Web system.
FIG. 8 is a schematic diagram for explaining a general Web service.
[Explanation of symbols]
40: client terminal, 41: external application (business trip application system), 41a: business trip application main function unit, 41b: service access unit, 41c: starting unit, 50: server device, 51: Web service, 51 ₁ … Timetable service, 51 ₂ ... Ticket reservation service, 52 ... Access application, 52 ₁ ... timetable access application, 52 ₂ ... Ticket reservation access application, service management application 53, Web server (application) 54, service site 55Nw1, NW2 ... network.

Claims (5)

A service providing program used in a server device that provides a Web service,
The computer of the server device,
Means for receiving, when receiving a use request including a previously issued user ID, address information of a program for accessing a Web service corresponding to the use request to a source of the use request;
Means for receiving an access program corresponding to the address information upon receiving a connection request including the user ID and the address information, to a transmission source of the connection request;
Upon receiving a notification that the processing result of the Web service processing is determined based on the processing of the returned access program, means for storing a set of the processing result and the user ID in a memory;
Means for receiving the result inquiry including the user ID, searching the memory based on the user ID, and returning an obtained processing result to a transmission source of the result inquiry;
Service provider program to function as The service providing program according to claim 1, wherein:
The computer of the server device,
A service for receiving a use request that does not include the user ID, issuing a user ID based on the use request, and returning the obtained user ID to the transmission source of the use request. Provider program. A service providing method used for a server device that provides a Web service process,
A step of, when the server device receives a use request including a previously issued user ID, returning address information of a program for accessing a Web service corresponding to the use request to a source of the use request;
When the server device receives a connection request including a user ID and address information, a step of returning an access program corresponding to the address information to a transmission source of the connection request;
A step of, when the server device receives a notification that the processing result of the Web service processing is determined based on the returned processing of the access program, storing a set of the processing result and the user ID in a memory;
When the server device receives a result inquiry including a user ID, searching the memory based on the user ID and returning an obtained processing result to a transmission source of the result inquiry;
A service providing method comprising: The service providing method according to claim 3, wherein
A step of, when the server device receives a use request not including the user ID, issuing a user ID based on the use request and returning the obtained user ID to a transmission source of the use request. A service providing method, comprising: A service use side program used for a client device that uses a Web service provided from a server device,
The computer of the client device,
Means for transmitting a use request including a previously issued user ID to the server device,
Means for transmitting a connection request including the address information and the user ID to the server device upon receiving the address information from the server device;
Means for holding an access program received from the server device in a memory, and activating the access program in the memory;
Means for capturing a processing result from the server device,
A service use side program to function as a service.

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