Towards runtime discovery, selection and composition of semantic services

Abstract

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.

A collaborative mobile edge computing and user solution for service composition in 5G systems

“…Initially, composition was constrained to web services but then extended to other areas such as media content modifications . A semantic service composition framework called DynamiCoS has been proposed, which aims at supporting on‐demand runtime composite service user requests . The solution depends on a life‐cycle mechanism that tackles different service phases and requirements.…”

An Integrated Semantic Web Service Discovery and Composition Framework

“…In [32], Da Silva et al present a framework that effectively supports both automatic semantic discovery and composition, among other relevant phases of the composition life-cycle, such as service publication and service selection, taking into account non-functional properties. One of the limitations of the discovery phase is that it does not support fine-grained requests.…”

A Synergy of Semantic and Context Awareness for Service Composition in Ubiquitous Environment

“…However, this approach doesn't take context into consideration while discovering and composing services. Da silva et al (Da silva et al, 2011) presented a QoS-aware approach based on the QoS-model to perform discovery, selection and composition tasks at runtime to enhance user satisfaction and quality of services. By incorporating non-functional parameters such as Response Time and Throughput with the Web services and user request, this approach can select dynamically suitable services in dynamic way.…”