Please Wait SDLC is a series of stages in software engineering that aims to develop the proposed software, namely communication, gathering requirements, feasibility studies, systems analysis, software design, integration, implementation and disposition.  Coding and testing are also included in the SDLC criteria, but these two things should have been done earlier.

Software testing is carried out when coding by the developer and comprehensive testing is carried out by testing experts at various code levels such as module testing, program testing, product testing, internal testing and product testing for user involvement and feedback.