Question

1.Business/User Requirement

2.Architecture Proposal,Solution Proposal

3.Functional Design,produce functional spec/EDR(external design requirement)

4.Technical Design,produce technical spec/IDR(internal design requirement )

5.Coding and Unit testing(Unit test plan) <= most of us begin from here

6.Quality Assurance(QA checklist)

7.SIT/SAT-System Integration Testing/System Acceptance testing

8.UAT-User Acceptance Testing

9.OAT-Operational Acceptance Testing/Production suitability Testing

10.Releease preparation

11.Release and post release support