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System Approach And Agile Approach Essay

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COMPARISON OF THE FORMAL AND AGILE APPROACHES TO SYSTEMS DEVELOPMENT, UNIT 11

Sophie Pritchard

CONTENTS
Introduction 3
Different stages of a life-cycle 4
The formal approach: 4 the waterfall approach: 4
The Agile approach: 7
Prototyping: 7
Conclusion 9

INTRODUCTION
A system is created to solve problems, for example, work out someone’s wages. The systems approach can be said to be an organised way of dealing and solving the problem.
A life cycle in system analysis is a term used to describe a process for planning, creating, testing, and deploying an information system. The systems development life-cycle concept applies to a range of hardware and software configurations, as a system can be composed of hardware only, software only, or a combination of both.
General system development life-cycles that exist include: o Waterfall – stages, requirements, design, implementation, verification, maintenance. o Agile – stages, define requirements, integrate & test(X3), feedback, approved? yes=release to market, no= record & incorporate changes, adjust & track, next iteration (back to beginning). o Spiral – plan, test, analyses, development of testing (back to the beginning until everything is complete and there are not problems found in testing.)
(sources: https://en.wikipedia.org/wiki/Systems_development_life_cycle)

DIFFERENT STAGES OF A LIFE-CYCLE
THE FORMAL APPROACH:

THE WATERFALL APPROACH:
The waterfall model is a sequential

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