On Composing a Reliable Composite Web Service: A Study of Dynamic Web Service Selection

Hwang, San‐Yih; Lim, Ee-Peng; Lee, Chien-Hsiang; Chen, Cheng-Hung

doi:10.1109/icws.2007.133

Cited by 33 publications

(16 citation statements)

References 13 publications

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“…In order to make the discussion convenient, we refer to the grammar rules and the semantic analysis given by San Yih Hwang [9], and then give the formal definitions of Web service, configuration and Web Services composition. …”

Section: Concept Descriptionsmentioning

confidence: 99%

“…In addition, San-Yih Hwang [8,9] gave a probabilistic model in Web Services in allusion to the unreliability of Web 978-1-4244-6837-9/10/$26.00 ©2010 IEEE 823 services composition, and analyzed the time and space complexity both in dynamic programming and greedy algorithm, however, he did not assess QoS indicators with dynamic programming and greedy algorithm. In [9], San-Yih Hwang explained grammar rules and semantic analysis of the dynamic Web services, proposed two services selection strategies: based on AR (Aggregated Reliability) and CAR (Composability and Aggregated Reliability), and tested the rate of composition and success in services composition, but it is bounded only on the reliability, without the consideration on other factors of QoS indicators.…”

Section: Introductionmentioning

confidence: 98%

“…In [9], San-Yih Hwang explained grammar rules and semantic analysis of the dynamic Web services, proposed two services selection strategies: based on AR (Aggregated Reliability) and CAR (Composability and Aggregated Reliability), and tested the rate of composition and success in services composition, but it is bounded only on the reliability, without the consideration on other factors of QoS indicators.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Dynamic Web services composition based on QoS model

Dong

Wang

Luo

2010

2010 International Conference on Intelligent Computing and Integrated Systems

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How to select the service components and coordinate services composition have become key problems in dynamic web services. Based on the original discrete probability distribution, we propose a QoS model to support dynamic Web services composition, develop a WS_TSC algorithm for services composition QoS. We finally carry out a simulation experiment via this algorithm. Compared with San-Yih Hwang's work, the experimental result shows that this model markedly reduces the response time and improves the rate of success and the rate of composition in dynamic Web services composition.

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Section: Concept Descriptionsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Dynamic Web services composition based on QoS model

Dong

Wang

Luo

2010

2010 International Conference on Intelligent Computing and Integrated Systems

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“…The mapped goal model does not only represent the explicit intention in the service request but also relates to a set of extended subgoal models to represent implicit of Web services research 4 and enhance the services provision such as service composition, 5 service discovery, 6 service selection, 7 etc. However, there is still a big gap between human users and the service provider especially when we want the system to serve users automatically with less user interaction.…”

Section: Introductionmentioning

confidence: 99%

A goal-driven approach for service request modeling

Lee

Liu

2010

Int. J. Intell. Syst.

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We propose a goal-driven approach to model the service request intention in service-oriented systems. The service request intention can be extracted from the user input and modeled by predefined goal models. We identify this problem as the service request intention extraction. If a service-oriented system has the abilities of user's intention extraction and can make some activities to satisfy the extracted intention, the system can provide a more convenient and efficient service for the user. We start the system construction from the view of goal-driven requirements engineering. The requirements specification is generated by the goal-based requirements analysis in which the functional and nonfunctional requirements will be extended with goal models. A set of computable goal models that represent the user requirements is selected and refined as the basis of system services. The designer can also design related system services based on the requirements specification. Based on the proposed intention extraction approach, the user's vague and imprecise intention will be extracted and mapped to computer understandable and computable goal models for representing the intention. A case-based method is developed to implement the intention extraction process. The intention interpretation knowledge is stored in a case base, and the intention interpretation is based on the process of case retrieval and adaptation. A general architecture for an intention-aware service-oriented system is proposed for demonstrating how to apply the proposed approach. C

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“…In this paper we extend this framework and consider the problem of service assembly. Unlike some authors, for example [4][5][6][7][8] who consider service composition a run-time problem and apply semantic techniques to run-time resolution of compatibility conflicts, we regard service assembly a designtime concern and focus on specifying compatible services interfaces. Furthermore, our analysis assumes that we are dealing with domain-wide services based on an industry standard specification, avoiding incompatibilities arising from services designed by individual service providers.…”

Section: Introductionmentioning

confidence: 99%

Design of Composable Services

Feuerlicht

2009

Service-Oriented Computing – ICSOC 2007

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Abstract. Service composition methods range from industry standard approaches based on Web Services and BPEL to Semantic Web approaches that rely on AI techniques to automate service discovery and composition. Service composition research mostly focuses on the dynamic (workflow) aspects of compositions. In this paper we consider the static component of service composition and discuss the importance of compatibility of service interfaces in ensuring the composability of services. Using a flight booking scenario example we show that reducing the granularity of services by decomposition into service operations with normalized interfaces produces compatible interfaces that facilitate service assembly. We then show how relational algebra can be used to represent service operations and provide a framework for service assembly.

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On Composing a Reliable Composite Web Service: A Study of Dynamic Web Service Selection

Cited by 33 publications

References 13 publications

Dynamic Web services composition based on QoS model

Dynamic Web services composition based on QoS model

A goal-driven approach for service request modeling

Design of Composable Services

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