Role of Web Services in Distributed Heterogeneous Applications and Testing for Quality Assurance

Abstract In distributed computing, web services play vital role in building heterogeneous applications and integrating existing applications. The computing scenarios and architectures changed with web services technology. It supports service oriented architecture (SOA). It is one of the distributed computing technologies that support development of API and consuming in distributed applications. Finding architectural overview of distributed applications and the role of web services can help in grasping such applications faster. Moreover, testing web services needs good understanding of their distributed nature. In this context, we throw light on the role of web services and where they fit in distributed computing architecture which is essential a multi-tier architecture. It also provides details of different approaches of testing web services besides covering tools such as SoapUI, Postman and HttpMaster. This paper provides useful insights testing web services and third party APIs using the tools aforementioned.