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System Development

Introduction

This chapter will provide you with an overview of the systems development process. First we describe in detail the traditional Systems Development Life Cycle (SDLC), encompassing the stages through which each system should pass, from the initial survey to hand-over of the completed system.

Pressure for rapid development and future maintainability of systems has resulted in a number of alternative approaches to systems development, ranging from development by end-users, to the incorporation of formal methods to improve the quality and efficiency of the development process.

Systems Development Life Cycle (SDLC)

Systems development could be seen as the simple process of writing programs to solve the needs of the user. Unfortunately the user knows what he wants but has no technical expertise while the programmer understands the computer but not the user environment. This communication gap between the customer and the service provider must be handled by an intermediary, the systems analyst. Broadly speaking therefore the systems analyst translates user’s needs into detailed specifications for implementation by the programmer.

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