Reliability analyzing method for DAML-S (Darpa Agent Markup Language for Services) composite services

An analysis method and technology of combined services, applied in the field of reliability analysis of DAML-S combined services based on stochastic Petri nets, can solve the problems of weak non-functional characteristics and quantitative analysis, and blank reliability analysis

Inactive Publication Date: 2012-05-09
CHENGDU GKHB INFORMATION TECH
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Problems solved by technology

[0003] At present, the research on DAML-S service composition focuses on its functional aspects, such as service semantic description, service discovery, service matching, etc., while its non-functional characteristics and quantitative analysis are relatively weak, while the research on its reliability analysis basically blank

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  • Reliability analyzing method for DAML-S (Darpa Agent Markup Language for Services) composite services
  • Reliability analyzing method for DAML-S (Darpa Agent Markup Language for Services) composite services
  • Reliability analyzing method for DAML-S (Darpa Agent Markup Language for Services) composite services

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[0048] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, and are not intended to limit the present invention.

[0049] Such as figure 1 As shown in Figure 8, a DAML-S combined service reliability analysis method is performed according to the following steps:

[0050] A. When the ServiceModel document of the DAML-S description document describes an atomic process, convert the atomic process into a Petri net-based model; when the ServiceModel document of the DAML-S description document describes a combined process, convert the The combination process is converted to a Petri net-based model;

[0051] First abstract and model the ServiceModel document in the DAML-S description document, and co...

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Abstract

The invention provides a reliability analyzing method for DAML-S (Darpa Agent Markup Language for Services) composite services, belonging to the crossing technical field facing service computing architecture and software reliability. The method comprises the following steps of firstly adopting Service Model and Service Grounding descriptions of a random Petri net to DAML-S to perform abstraction and modeling, obtaining an NMSPN (Non-Markovian Stochastic Petri Net) flow model marked by time and probability, and then extracting a dependency relationship between the system reliability and various activity input parameters based on the NMSPN flow model, and solving the flow normal ending probability, so as to realize the reliability analysis to the DAML-S composite services. The method provided by the invention can be used for filling the blank of the reliability analysis of semantic network service composition based on DAML-S, and providing model support and analysis means for the credibility research of semantic WEB service.

Description

technical field [0001] The invention belongs to the intersection field of service-oriented computing framework and software reliability, and in particular relates to a reliability analysis method for DAML-S composite services based on random Petri net. Background technique [0002] As a new type of distributed component model, Web service plays an increasingly important role in the fields of e-commerce and enterprise application integration. It is considered to be the core of SOA (Service-Oriented-Architecture, Service-Oriented Computing Architecture). One of the technologies, the service composition technology that accompanies Web services, has become the focus of academia and industry because it can realize service reuse and value-added. The domain ontology service composition standard represented by DAML-S, because it can realize The automatic discovery, matching, combination and execution of semantic WEB services has become a research hotspot in recent years. [0003] A...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/08G06F9/46
Inventor 夏云霓陈鹏杨瑞龙朱庆生吴磊何振
Owner CHENGDU GKHB INFORMATION TECH
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