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Real time dynamic synthesis method of web services

A synthesis method and technology of synthesis algorithm, applied in the field of Web Services, can solve the problems of inability to find a synthesis scheme for service quality, low overall efficiency, and inability to find a synthesis scheme.

Inactive Publication Date: 2006-03-29
FUDAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But he did not give a clear synthesis framework for this method, and when the number of Web Services is large, the synthesis scheme needs to be optimized, especially when multiple synthesis is required, and the forward chain algorithm has backtracking problem, the overall efficiency is not high
In addition, this composition method cannot find all the composition schemes, and there is no way to find the composition scheme with the best service quality

Method used

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  • Real time dynamic synthesis method of web services
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  • Real time dynamic synthesis method of web services

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] Example 1 illustrates the detailed process of the non-backtracking reverse chain synthesis method. In this example, only one synthesis scheme was found, but not all synthesis schemes were found;

Embodiment 2

[0051] Example 2 describes the detailed procedure of the optimal synthesis method based on SLA. First find out all the synthesis schemes, and then select the best synthesis scheme according to the user's SLA requirements.

[0052] Example 1

[0053] In the stock industry, users want to find out the price of the company's stock in a certain stock market (such as: New York stock market, London stock market) converted into RMB and the Country name and other country information. Let's assume that there are the following Web Services:

[0054] ①Country(CountryCode i , CountryName o , Info o )

[0055] ②UStoRMB(USprice i , Datetime i , RMBprice o )

[0056] ③UKtoRMB(UKprice i , GivenDatetime i , RMBprice o )

[0057] ④ New York Stock (Company ID i , SomeDatetime i , USprice o )

[0058] ⑤YellowPages(CompanyName i , CompanyID o , Address o , CountryID o , Phone o , Info o )

[0059] We can write Web Services as a predicate with a binding mode. The superscript i...

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Abstract

The present invention relates to a real-time dynamic synthesis method of Web Services, including: Web Services production modeling, parameter-level self-body structure, non-backtracking backward chain synthesis algorithm and optimum synthesis algorithm based on SLA. Said invention also provides the concrete steps of said synthesis process.

Description

technical field [0001] The invention belongs to the technical field of Web Services, and in particular relates to a real-time and dynamic synthesis method of Web Services. Using this synthesis method, users can automatically synthesize a synthesis scheme as long as they give the input and expected output, or can synthesize an optimal Web Service according to the SLA (Service Level Agreement) given by the user, and convert it into The executable BPEL4WS (Business Process Execution Language for Web Service) code is then executed by the BPEL4WS engine and returns the output required by the user. Background technique [0002] Web Services is one of the current research hotspots, and it is also an important technology with promising development prospects. As a set of technical standards, it defines how applications can achieve interoperability on the Web. A new platform for apps. People can use any language they like to write Web Services on different platforms, and then query ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F9/44
Inventor 顾宁刘家茂吴宇进崔俊涛朱一闻叶炜
Owner FUDAN UNIV
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