Service-Oriented Architecture (SOA) has changed the way business enterprises get aligned with technology with a very fast pace keeping the demand of re-alignment time very short. Testing of services becomes equally important in SOA implementation in the context of enterprise architecture, business re-alignment and so on maintaining quality. Unit and integration testing though holds a key testing strategy but regression test becomes inevitable when services are orchestrated, choreographed and bound dynamically as per the change in requirement as well as when services are upgraded. In this paper a survey work has been done for regression testing method for SOA. Here the changed scenario of implementation of SOA enabled applications has been considered. General TermsTesting, Survey, SOA research.

Fault tolerance is one of the main issues in Wireless Sensor Networks (WSNs) since it becomes critical in real deployment environment where reliability and reduced inaccessibility times are important. In this paper, we propose a fault–tolerance technique for coverage area of the sensor network that enhances the energy efficiency by reducing the communication, with the help of Constrained Delaunay Triangulation intersect line. Further by applying the above approach, we reduce the energy consumption and congestion in the network. In last, we describe our approach with a case study that our approach is better in fault tolerance and energy saving.