Piriyanka

This unit covers the competencies in gathering and analyzing requirements ,design, develop, tests implement and document basic information system. System development life cycle(SDLC) It is  a logical process by which system analysis software engineers ,programmer and end users will information system. Need of the life cycle. Ease the process of building a system. Build high quality system that means customer expectation within time and cost estimate. work effectively and efficiently in the current and planed information technology infrastructure. avoid failures like unclear objective cost over runs. Main phase SDLC problems definition: - This phase  identify and define a need for a new system. Requirement analysis:- It's specified the system users business requirement expectation and priorities for a solution to the business problem. System implementation:-  the actual coding and development of the software take place based on the design specifications. Developers write the code a