5e9513e7_niques_Work__Improved_Feedback__Description
[Technique] Traditional Acceptance and System Testing [Feedback Period] Months. By waiting until the system is "ready for testing", the testers won't see the system until months after the requirements are finalized. [Description] 
Acceptance testing attempts to address the issue "does the system do what the stakeholders have specified". System testing, including functional, load/stress, and integration testing, attempts to address the issue "does the system work". With traditional testing the majority of testing occurs during the testing phase late in the lifecycle. Testers will write test cases, based on the requirements, in parallel with implementation.
Why Agile Software Development Techniques Work: Improved Feedback
Description