An Approach for Fault Reconfiguration in QoS Based Service Oriented Architecture

Abstract

Observing last decade it is concluded that distributed systems have played a significant role in creating paradigms for software development. Web services as one of the important components of the distributed environment had laid a great trend of their usage for software development. These software may be the applications to serve the purpose with an intent of integration of web services. Service Oriented Architecture (SOA) is a principle set that supports the software development on the basis of web service integrations. In this web services of distinct functionalities developed around independent platforms are selected and integrated to serve a specific purpose. SOA deals with developing & casting in of web services provided from independent developers within a single module. The selection and integration of web services is done on the basis of some Quality of Service (QoS) parameters. These parameters may be the cost, response time and availability of web services as some of the examples. Considering the discussed scenario of web service integration for developing any software, there may be a situation that may lead to events of service failures resulting in the breakdown of complete software system. To avoid such discontinuity in receiving the services from an application there is always a necessity to tackle and overcome these faults as soon as possible with least overheads along by maintaining the required QoS. With the proposal in this paper we are proposing an algorithm to handle multiple faults in a system developed within QoS based service oriented environment.