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Management Information Systems




                    Notes             Design
                                      Programming
                                      Installation
                                      Post implementation.

                                               Figure 14.1: The Lifecycle Methodology for Systems Development






























                                   The lifecycle methodology divides systems development in to formal stages with specific
                                   milestones and products at each stage.

                                   Stages of the Systems Lifecycle

                                   The project definition stage determines whether the organization has a problem and whether that
                                   problem can be solved by building a new information system or by modifying an existing one.
                                   The systems study stage analyzes the problems of existing systems in detail, identifies objectives
                                   to be attained by a solution to these problems, and describes alternative solutions.
                                   The design stage produces the design specification for the solution. The lifecycle emphasizes
                                   formal specifications and paperwork, so many design documents are generated during this stage.
                                   The programming stage translates the design specifications produced during the design stage
                                   into software program code. Systems analysts work with programmers to prepare specification
                                   for each program in the system.
                                   The installation stage consists of the final steps to put the new or modified system into operation:
                                   testing, training, and conversation.
                                   The post-implementation stage consists of using and evaluating the system after to is installed
                                   and is in production.



                                     Did u know? Much of the information gathered during the systems study phase will be
                                     used to determine information system requirement.




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