IGCSE ICT 17 - THE SYSTEMS LIFE CYCLE PART1
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THE SYSTEM LIFE CYCLE
7.1 analysis
7.2 design
LEARNING OBJECTIVES
Ø Methods of researching an existing system
Ø Recording and analysing information about the current system
Ø System specification
Ø Describe how it is necessary to design documents, files, forms/inputs, reports/outputs and validation
Ø Produce designs to solve a given problem
Ø Design data capture forms and screen layouts
Ø Design report layouts and screen displays
Ø Design validation routines (including length check, type check, format check, presence check, check digit)
Ø Design the required data/file structures (e.g. field length, field name, data type)
INTRODUCTION
System life cycle is necessary to review an existing system and suggest a number of improvements.
There are many stages in systems analysis.
The main stages in the systems life cycle includes analysis, design, development and testing, implementation, documentation and evaluation.
