In my last blog post, you read about How to design workload model for load testing. In this blog post, we will see how to design workload model for stress testing. Every person in this world has a breaking point. In short, there is a limit for everything. It applies for everything. Similarly, servers also has a breaking point, beyond a particular limit it will not behave as expected. It is much important to identify the breaking point before application goes live.
See the definition of Stress testing in my earlier post Types of Performance Testing. Stress Testing validates the stability of the system and it identifies the breaking point by overloading the concurrent users.