A Framework for Dynamic Web Services Composition

Lécué, Freddy; Silva, Eduardo Gonçalves da; Pires, Luís Ferreira

doi:10.1007/978-3-7643-8864-5_5

Cited by 41 publications

(30 citation statements)

References 20 publications

(19 reference statements)

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“…Figure 2 shows the DynamiCoS framework architecture, and indicates (between parenthesis) the technologies used in the implementation of the framework components of the DynamiCoS prototype platform. The work presented in this article extends our previous work discussed in [8,7,9].…”

Section: Dynamicos Frameworksupporting

confidence: 84%

Towards runtime discovery, selection and composition of semantic services

Silva

Pires

Sinderen

2011

Computer Communications

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Service-orientation is gaining momentum in distributed software applications, mainly because it facilitates interoperability and allows application designers to abstract from underlying implementation technologies. Service composition has been acknowledged as a promising approach to create composite services that are capable of supporting service user needs, possibly by personalising the service delivery through the use of context information or user preferences. In this paper we discuss the challenges of automatic service composition, and present DynamiCoS, which is a novel framework that aims at supporting service composition on demand and at runtime for the benefit of service end-users. We define the DynamiCoS framework based on a service composition life-cycle. Framework mechanisms are introduced to tackle each of the phases and requirements of this life-cycle. Semantic services are used in our framework to enable reasoning on the service requests issued by end users, making it possible to automate service discovery, selection and composition. We validate our framework with a prototype that we have built in order to experiment with the mechanisms we have designed. The prototype was evaluated in a testing environment using some use case scenarios. The results of our evaluation give evidences of the feasibility of our approach to support runtime service composition. We also show the benefits of semanticbased frameworks for service composition, particularly for end-users who will be able to have more control on the service composition process.

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Section: Dynamicos Frameworksupporting

confidence: 84%

Towards runtime discovery, selection and composition of semantic services

Silva

Pires

Sinderen

2011

Computer Communications

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“…Logical signature matching has been used in different works to verify whether the IO parameters of a service are compatible with the IO parameters of another service [3], [4]. Lécué et.…”

Section: Service Search and Matchmakingmentioning

confidence: 99%

“…al. [4] propose a composition algorithm which finds semantic compatabilities among independently defined service descriptions using the semantic matchmaking between the input and output service parameters, which they refer to as Causal Links.…”

Section: Service Search and Matchmakingmentioning

confidence: 99%

Composition of services in pervasive environments: A Divide and Conquer approach

Cassar

Barnaghi

Wang

et al. 2013

2013 IEEE Symposium on Computers and Communications (ISCC)

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Abstract-In pervasive environments, availability and reliability of a service cannot always be guaranteed. In such environments, automatic and dynamic mechanisms are required to compose services or compensate for a service that becomes unavailable during the runtime. Most of the existing works on services composition do not provide sufficient support for automatic service provisioning in pervasive environments. We propose a Divide and Conquer algorithm that can be used at the service runtime to repeatedly divide a service composition request into several simpler sub-requests. The algorithm repeats until for each sub-request we find at least one atomic service that meets the requirements of that sub-request. The identified atomic services can then be used to create a composite service. We discuss the technical details of our approach and show evaluation results based on a set of composite service requests. The results show that our proposed method performs effectively in decomposing a composite service requests to a number of sub-requests and finding and matching service components that can fulfill the service composition request.

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“…For each activity placeholder in a pattern, it is possible to automatically build a service discovery query in order to find a service operation to instantiate the activity. An example of a simple workflow is the one obtained by invoking sequences of services in a chain to transform an initial input into a required final output [1] [2].…”

Section: Secure Composition Patternsmentioning

confidence: 99%

Constructing Secure Service Compositions with Patterns

Pino

Spanoudakis

2012

2012 IEEE Eighth World Congress on Services

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This is the unspecified version of the paper.This version of the publication may differ from the final published version. Abstract-In service based applications, it is often necessary to construct compositions of services in order to provide required functionality in cases where this is not possible through the use of a single service. Whilst creating service compositions, it is necessary to ensure not only that the functionality required of the composition is achieved but also that certain security properties are preserved. In this paper, we describe an approach to constructing secure service compositions. Our approach is based on the use of composition patterns and rules that determine the security properties that should be preserved by the individual services that constitute a composition in order to ensure that security properties of the overall composition are also satisfied. Our approach extends a framework developed to support the runtime service discovery. Permanent repository linkSoftware service security; secure service composition

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A Framework for Dynamic Web Services Composition

Cited by 41 publications

References 20 publications

Towards runtime discovery, selection and composition of semantic services

Towards runtime discovery, selection and composition of semantic services

Composition of services in pervasive environments: A Divide and Conquer approach

Constructing Secure Service Compositions with Patterns

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