Improvement of QoS in process centric software development and application of analytical network process (ANP) for the estimation of critical phases

In a competitive business landscape, large organizations such as insurance companies and banks are under high pressure to innovate, improvise and distinguish their products and services while continuing to reduce the time-to market for new product introductions. Generating a single view of the customer is vital from different perspectives of the systems developer over a period of time because of the existence of disconnected systems within an enterprise. Therefore, to increase revenues and cost optimization, it is important to build enterprise systems more closely with the business requirements by reusing the existing systems. While building distributed based applications, it is important to take into account the proven processes like Rational Unified Process (RUP) to mitigate risks and increase the reliability of systems. Experiences in developing applications in Java Enterprise Edition (JEE) with customized RUP have been presented in this paper. RUP is adopted into an onsite-offshore development model along with ISO 9001 and SEI CMM Level 5 standards. This paper provides a basis to achieve increased reliability qualitatively with higher productivity and lower defect density along with competitiveness through cost effective custom software solutions of an application. Qualitative reliability is obtained, which is the expected number of defects in the software obtained from the PoC (Proof-of-Concept) through the RUP implemented prototype. Based on the prototype, the critical parameter(s) affecting the QoS is then estimated using Analytical Network Process (ANP) prior to actual implementation of the application development.