LLD:- Detail Level design - quite technical as well - Man-hours required is estimated and mentioned - contains functional & technical unit test cases - Review of DD - Review comments implemented till sign off by the stake holders ( client sides )
Development:- Coding by the developers as per the detail design -
Unit Testing:- is done in Development Server by the developer to ensure that program works as per the detail design - add / implement test case results - transport request details & documentation in detail design - Evidence is attached. Code Review to ensure that coding is as per the coding standards ( performance related as well ) - Also check the test cases and verify - Review comments implemented till sign-off by the stake holders. Before Application testing the realted chunk of work is transported to QA Server.
Integration Testing:- This is to ensure that programs work along with other components, that might get affected. e.g. Even the Invoice process should be tested if a change is made in the interface related with a PO creation / change. The test cases or created separately ( more functional in nature and considers dependency of components ). Before implementation of the release, the complete product needs to be tested to ensure that it can bear the maximum load of a production environment.
System Testing:- is performed with huge datasets to check if system / product can handle production scenario in terms of memory and performance.
User Acceptance:- Any further problems will be solved as Bug-fix or and enhancments will be carried out as a part of change request.
