End-To-End Response-Time: Where to Measure?

Because of the increasing need for application measurement, several vendors are offering products to track and record End-To-End Response Time. The question now becomes “where to measure” instead of “how to measure.” Measuring application response time at several points can produce an overwhelming amount of data but does not guarantee any meaningful information from the business point-of-view. This paper discusses different approaches to selecting these measurement points and presents several hypothetical examples to illustrate their meaningfulness to business transactions.