DynaComp: A Framework for dynamic composition of semantic web services

Elmaghraoui, Hajar; Benhlima, Laïla; Chiadmi, Dalila

doi:10.1109/icmcs.2014.6911248

Cited by 3 publications

(4 citation statements)

References 9 publications

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“…Hajar Elmaghraoui et al proposed a framework in [1] for the dynamic composition of web services. This framework is based on the model of semantic relationship between the web services and this relationship is presented using a Directed Graph approach.…”

Section: Related Workmentioning

confidence: 99%

“…A web services based system is configured by using a simple life cycle of service composition discussed in [1]. Phases of the service composition life cycle are illustrated in Figure 1.…”

Section: Service Composition Life Cyclementioning

confidence: 99%

“…For example, static service composition, dynamic service composition, manual service composition and automated service composition. We have selected a graph based approach for service composition because we can easily map services composition into a graph structure [1]. Some of the advantages of using graph theory are; Nodes of a graph can represent services and edges can represent dependencies among services.…”

Section: Directed Dependency Graph For Service Compositionmentioning

confidence: 99%

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Dynamic Service Discovery, Composition and Reconfiguration in a Model Mapping Business Process to Web Services

Jabbar¹,

Samreen²

2016

JCC

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In any organization where SOA has been implemented, all of the web services are registered in UDDI and users' needs are served by using appropriate web services. So in this paper, we will try to discover a service from repository first that can provide the required output to the user. The process becomes difficult when a single service is not able to fulfill a user's need and we need a combination of services to answer complex needs of users. In our paper, we will suggest a simpler approach for dynamic service composition using a graph based methodology. This will be a design time service composition. This approach uses the functional and non-functional parameters of the services to select the most suitable services for composition as per user's need. This approach involves "service classification" on the basis of functional parameters, "service discovery" on the basis of user's need and then "service composition" using the selected services on the basis of nonfunctional parameters like response time, cost, security and availability. Another challenge in SOA implementation is that, once the composition has performed, some services may become faulty at runtime and may stop the entire process of serving a user's need. So, we will also describe a way of "dynamic service reconfiguration" in our approach that will enable us to identify and replace a faulty service that is violating the SLA or is not accessible anymore. This service reconfiguration is done without redoing or reconfiguring the entire composition. In the end, to simulate the proposed approach, we will represent a prototype application built on php 5.4 using My SQL database at backend.

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Section: Related Workmentioning

confidence: 99%

“…A web services based system is configured by using a simple life cycle of service composition discussed in [1]. Phases of the service composition life cycle are illustrated in Figure 1.…”

Section: Service Composition Life Cyclementioning

confidence: 99%

Section: Directed Dependency Graph For Service Compositionmentioning

confidence: 99%

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Dynamic Service Discovery, Composition and Reconfiguration in a Model Mapping Business Process to Web Services

Jabbar¹,

Samreen²

2016

JCC

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“…By implementing adaptive mechanisms, composite services should be able to transform and function in spite of internal and external changes, searching to increase the composition potential and reducing as much as possible human involvement. Moreover, a great deal of research proposed to integrate a middleware (Elmaghraoui et al, 2014) between a network operating system and applications to resolve the previous limits. The role of the middleware is: to connect distributed applications; to mask heterogeneity of systems, to facilitate the development of applications; to adapt applications to changes in the context; and to reduce the dependency between the different components of an application.…”

Section: Introductionmentioning

confidence: 99%

Reflective approach to improve self-adaptation of Web service compositions with autonomic middleware

Cherif

Djemaa

Amous

2019

IJPCC

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Purpose This paper aims to propose an approach for the self-adaptation of the Web composition called SAMIWA. The SAMIWA framework helps users during the search, invocation and composition of the appropriate Web service. Design/methodology/approach The authors’ approach allows expressing requirements by taking into account potential users’ context in addition to the functional one. Findings In this paper, the authors introduce a new context-aware approach that provides a dynamic adaptation of service compositions. Originality/value The author has implemented a Web application that enables selection and composition of the most appropriate composite service.

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Automatic Dynamic Web Service Composition Using AND/OR Directed Graphs

Elmaghraoui

Benhlima

Chiadmi

2019

International Journal of Web Services Research

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In this article, the authors propose a dynamic web service composition approach based on representing the semantic relationship between web services using a weighted directed AND/OR graph. The nodes in this graph represent available services while the arcs represent the semantic input/output dependencies among them. The novelty of this work consists of constructing the graph and computing offline the shortest paths between each pair of its nodes to disconnect this tedious task from the composition query process. A set of dynamic optimization techniques has been included to reduce the size of the graph and thus improve the scalability and performance of this approach. In addition to the sequence and fork relations between services, this solution also supports the parallel relation. Furthermore, a recovery mechanism is integrated to ensure the continuity of the execution of the composition.

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DynaComp: A Framework for dynamic composition of semantic web services

Cited by 3 publications

References 9 publications

Dynamic Service Discovery, Composition and Reconfiguration in a Model Mapping Business Process to Web Services

Dynamic Service Discovery, Composition and Reconfiguration in a Model Mapping Business Process to Web Services

Reflective approach to improve self-adaptation of Web service compositions with autonomic middleware

Automatic Dynamic Web Service Composition Using AND/OR Directed Graphs

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