An important part of the application life cycle is the Testing phase which validates and verifies whether your application confirms to the requirements and whether its built accordingly. You can create and run test plans, test suites and test cases in Team Web Access, or you can easily launch Microsoft Test Manager (MTM) to manage and run test cases. When you launch MTM, Team Web Access starts in the context of your team project, so there is no need to explicitly connect to your VSO Team Project.
The main objective of cloud based load testing is to test the capacity of a single server, uncover any serious performance issues, and identify opportunities to improve the capacity or performance of the service.