Real time dynamic synthesis method of web services

A composition method and composition algorithm technology, applied in the field of Web Services, can solve the problems of no way to find out the service quality composition scheme, low overall efficiency, and inability to find out the composition scheme, etc.

Inactive Publication Date: 2008-04-23
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
  • Real time dynamic synthesis method of web services
  • 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 reverse chain synthesis method without backtracking. In this example, only one synthesis scheme is found, but not all synthesis schemes are found;

Embodiment 2

[0051] Embodiment 2 describes the detailed process of the optimal synthesis method based on SLA. First find out all the synthesis schemes, and then choose 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 shares in a certain stock market (such as the New York stock market, London stock market) converted into RMB and the company’s name through a "multinational company name" and "a specific moment" Country name and other country information. 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] ④NewYorkStock(CompanyID i , SomeDatetie i , USprice o )

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

[0059] We can write Web Services in the for...

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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 specifically relates to a real-time and dynamic synthesis method of Web Services. Using this synthesis method, the user can automatically synthesize a synthesis plan as long as the given input and expected output, or can synthesize an optimal WebService according to the SLA (Service Level Agreement) given by the user, and convert it into a The executed BPEL4WS (Business Process Execution Language for WebService) 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, and is the establishment of interoperable distributed A new platform for the application. People can write Web Services on different plat...

Claims

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Application Information

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Patent Type & Authority Patents(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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