This document discusses the design and development of a Service Oriented Architecture (SOA) interface for mobile device testing. It proposes using a SOA approach to address the challenges of mobile device testing, which is made difficult by the complex and evolving nature of mobile software and hardware. The paper describes building modular components according to SOA principles and using a common interface to allow components to communicate and reuse test cases. It outlines developing fault injection techniques and a taxonomy of faults specific to SOA to test the reliability of the proposed interface. The goal is to create a more flexible and reusable framework for mobile device testing.