Dynamic Web Service Composition

Mustafa, Faisal; McCluskey, T.L.

doi:10.1109/iccet.2009.191

Cited by 16 publications

(6 citation statements)

References 12 publications

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“…in [47]) is to have a guaranteed quality for delivered services in the final composition. As mentioned before the dynamic web service composition [39] brings in challenges to current composition techniques. Some techniques attempt to integrate QoS analysis into service composition.…”

Section: Service Composition and Ranking Using Qos Analysismentioning

confidence: 99%

Web service composition ranking based on QoS and social network analysis

Dehghani¹

2021

Preprint

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Web service composition refers to the aggregation of web services for producing composite solutions in order to satisfy user requirements which can't be satisfied by atomic services. It is an essential challenge to find the most reliable and trustable complex services in each composition process. Many of current composition approaches use QoS (Quality of Service) values to select among different composition candidates. However, QoS values can't be trusted all the time since some service providers may promote their services by publishing wrong QoS values. Social network analysis techniques such as PageRank have been used successfully in finding the trustable and authoritative web resources. We believe that these techniques can also be used to improve the service composition process. We have developed a modified PageRank algorithm called Service Rank in order to find the importance level of each service in a composition based on its connectivity and invocation history. This can be accomplished by assigning higher weights to links which have more number of invocations, more up-to-date invocation time and contract signing time, and longer contract durations. Eventually the Service Rank score will be combined with the QoS score for composition ranking. Preliminary results from our experiments have proved the effectiveness of this method. As a consequence users can be more satisfied with the service composition result.

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Section: Service Composition and Ranking Using Qos Analysismentioning

confidence: 99%

Web service composition ranking based on QoS and social network analysis

Dehghani¹

2021

Preprint

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“…A dynamic composite Service, which is called also objective based composition, is a conglomeration of existing Web services working in tandem to offer a new value-added Service (Mustafa, 2009) and (Jureta, 2007). It is composed at runtime, i.e., the Web services that participate in composition process are selected and composed at runtime.…”

Section: Dynamic Transactional Composite Servicesmentioning

confidence: 99%

“…Providing new services by combining on the fly existing ones is a major ongoing idea in pervasive computing. The Web service composition consists of creating and providing high-level functionalities from available services in order to meet the user requirements (Mustafa, 2009).…”

Section: Introductionmentioning

confidence: 99%

An Event-B Driven Approach for Ensuring Reliable and Flexible Services Composition

Abbassi¹,

Graiet²,

Hamel³

et al. 2014

STSC

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In context of pervasive environment, the availability and reliability of Web services cannot be always guaranteed due to the dynamic and uncertain nature of these environments. Therefore, ensuring reliable and flexible service composition is one of the most difficult tasks. To overcome this problem, we propose an Event-B driven approach to easily design reliable and flexible Services compositions. We introduce a new paradigm, called dynamic transactional pattern. This new paradigm is a convergence concept of dynamic workflow patterns and advanced transactional model. It combines dynamic Control-Flow flexibility and transactional processing reliability. A composite Service is defined as a set of dynamic transactional patterns instances properly connected together. We show how the transactional behavior of a composite Service is automatically defined in an efficient way. In this work, we combine the modeling and verification activities related to formal development process supported by Event-B. The verification activity is based on theorems proving and model-checker. Afterwards, the model is validated using ProB animator in order to ensure that it behaves as expected.

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“…Approaches for dynamic web service composition are discussed in [13][14][15]. However, all these three works do not focus on adaptive composition and the approaches are not tested in an SOA environment.…”

Section: Related Workmentioning

confidence: 99%

Template based SOA framework for dynamic and adaptive composition of web services

Rajaram

Babu

2010

2010 International Conference on Networking and Information Technology

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Automated Web service composition is currently one of the major research problems in the area of service oriented computing. Web services facilitate seamless business-to business integration. Whenever it becomes difficult to find a single service for a particular task, a composition of services that can together perform the given task, is required. In general, this is accomplished using Service Oriented Architecture (SOA). However, the requirements of the users are frozen before the system locates, composes and executes the required services. The response is not personalized to the user environment. Further, conventional web services cannot handle the context and the context aware web services need to contain the context processing logic. Hence, we propose a framework for dynamic composition of Web services using templates in SOA. This framework allows maximum flexibility for the users to change their requirements at runtime and provides adaptive composition irrespective of whether a web service is context enabled or not.

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Dynamic Web Service Composition

Cited by 16 publications

References 12 publications

Web service composition ranking based on QoS and social network analysis

Web service composition ranking based on QoS and social network analysis

An Event-B Driven Approach for Ensuring Reliable and Flexible Services Composition

Template based SOA framework for dynamic and adaptive composition of web services

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