IST 110 Lecture Notes - Lecture 6: Database Design, Systems Development Life Cycle, Top-Down And Bottom-Up Design
8 Aug 2016
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Stepwise refinement (going from idea, to algorithm, to program) Variables variable- a named portion of the computer"s memory whose contents the program can examine and change. Describe the activities involved in each stage of the software development lifecycle (sdlc) systems development life cycle- sequence of seven phases the system passes through between the time it is conceived and the time it is phased out. Investigations- study the existing business problem, or opportunity and determine whether it is feasible to develop a new system or redesign the existing system. Organizational feasibility. based on its investigation, the project team makes one of three recommendations leave the current system, improve or enhance the current system, or develop an entirely of system. Input/output requirements, processing requirements, storage requirement, control requirement. report describe the current business procedures and the current system. ,identify the problem with the current procedures and the current system.
