A Statechart-Based Model for the Semantic Composition of Web Services

Gamha, Youssef; Bennacer, Nacéra; Romdhane, Lotfi; Vidal-Naquet, Guy; Ayeb, B.

doi:10.1109/services.2007.11

Cited by 10 publications

(6 citation statements)

References 10 publications

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“…The state chart-based model in (Gamha et al 2007) ex-plores the concept of communities of heterogeneous services which propose similar functionalities presented by a homogeneous ontology. The composition process utilizes IOPEs matching of OWL-S descriptions.…”

Section: Semantic Matching and Composition Algorithmsmentioning

confidence: 99%

The WTE+ framework: automated construction and runtime adaptation of service mashups

2012

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Section: Semantic Matching and Composition Algorithmsmentioning

confidence: 99%

The WTE+ framework: automated construction and runtime adaptation of service mashups

2012

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“…The Petri nets [21], Labeled behavior diagrams (LBD) [22], M athematical model [23], UM L Activity [24] and state chart diagrams [25], Workflow M odel [26] and Finite automata [27] are the major modeling methods used to represent the composite Web service. In this paper, we propose a methodology to build an abstract composition plan which is defined based on the flow graph concept.…”

Section: Lite Rature Survey and Brief Reviewmentioning

confidence: 99%

Dynamic Web Service Composition Based on Operation Flow Semantics

D’Mello

Ananthanarayana

2010

Information Systems, Technology and Management

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Dynamic Web service composition is a process of building a new value added service us ing available services to satisfy the requester's complex functional need. In this paper we propose the broker based architecture for dynamic Web service composition. The broker plays a major role in effective and efficient discovery of Web services for the individual tasks of the complex need. The broker maintains flow knowledge for the composition, which stores the dependency among the Web service operations and their input, output parameters. For the given complex requirements, the broker first generates the abstract composition plan and discovers the possible candidate Web services to each task of the abstract composition plan. The abstract composition plan is further refined based on the M essage Exchange Patterns (M EP), input and output parameters of the candidate Web services to produce refined composition plan involving Web service operations with preferable execution flow. The refined composition plan is then transferred to generic service provider to generate executable composition plan based on the requester's input/output requirements & preferences. The proposed effective Web service discovery and composition mechanism is defined based on the concept of functional semantics and flow semantics of Web service operations.

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“…As subsumption relationship, they use state transitions systems comparison relationships like simulation and bi-simulation with PDL logic in [11], or with statecharts in [12].…”

Section: Fig 2 a Sws Ontologymentioning

confidence: 99%

“…We do not address the problem of composition in this paper, we quote several works that addressed this topic for semantic web services [11] [12]. As stated above, these services could be described as state transitions systems with another subsumption relationship.…”

Section: Fig 2 a Sws Ontologymentioning

confidence: 99%

A Semantic Repository for Adaptive Services

Aït‐Ameur

2009

2009 Congress on Services - I

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The semantic characteristics related to the web services definition are weakly addressed in the original definition of the stack of web services. Web services languages like WSDL or composition languages like BPEL still have syntactic oriented definitions. Several research activities tend to use semantic based descriptions in order to describe approaches for automatically discovering services and for defining adaptive services. Our claim is that it is needed to proceed as for static data by providing on the one hand another level of abstraction that hides the WSDL descriptions of services and on the other hand a subsumption relationship capable to define a substitutability relationship between semantic web services. This paper proposes to use a semantic registry, to store semantic web services (SWS), equipped with an exploitation language that supports semantic based process discovery. Semantic web services are being described in an ontology of services, with a subsumption relationship. Their input and output parameters refer to concepts of a domain ontology. I. CONTEXT OF OUR STUDYNowadays, thanks to the progress of networks and distributed computing, the web makes available a huge amount of web services disseminated all over the web. In order to reach their objectives, users access services and compose them. This usage of services leads to several applications like electronic commerce, concurrent engineering, scientific computations, grid computing, workflow definitions, and so on. However, such an activity requires the following functionalities 1) finding and discovering the right service capable to reach the suited goal. This step requires the availability of a search engine capable to return the suited service when requested; 2) defining correct services compositions when services are built by assembling (composing) other available services. This composition shall ensure that the obtained composite service reaches the expressed target goal, and 3) ensuring the availability and the quality of the discovered and/or composed service when it is invoked. By quality, we mean the satisfaction of properties like availability, safety, response time and so on. When the previous functionalities are available, it becomes possible to build safe and self healing complex services.Many languages supporting such functionalities have proposed and/or standardized. They offer resources for describing services, storing these descriptions in repositories and for attaching some characteristics that describe quality properties. Web services description languages like WSDL [1] or composition languages like BPEL [2] have syntactic oriented definitions. The services constructs they offer are syntactical and there is no possibility to understand what is the meaning of the function a service performs. For example, these languages do not offer resources to handle the signification of an integer service parameter.Indeed, the original definition of the stack of web services does not support any explicit semantic definition. The capability ...

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A Statechart-Based Model for the Semantic Composition of Web Services

Cited by 10 publications

References 10 publications

The WTE+ framework: automated construction and runtime adaptation of service mashups

The WTE+ framework: automated construction and runtime adaptation of service mashups

Dynamic Web Service Composition Based on Operation Flow Semantics

A Semantic Repository for Adaptive Services

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