Decomposition of end-to-end response time: Addressing a major corporate requirement

The last few years saw the emergence of application End-to-End Response Time (ETE RT) metric as a key requirement. If total ETE RT is excessive there is a need to identify the time taken by its components: to decompose ETE RT. This is particularly difficult in client/server and Internet applications. This paper describes how this challenge was addressed from technical and business perspectives for a production application in a large corporation. We outline the approach devised to address the challenge, the implementation and the testing of the prototype in the corporate test setup.