lntroduction

System Life Cycle

 

 

 

 

 

The system life cycle is a series of stages that are worked through during the development of a new information system.
 

A lot of time and money can be wasted if a system is developed that doesn’t work properly or do exactly what is required of it. A new system is much more likely to be successful if it is carefully planned and developed.

Video on System Life Cycle

 

 Feasibility study
 

- The first stage of the system life cycle

- This is an investigation that is carried out by a systems analyst to find out what the main problems are with the existing system and if it is technically possible and cost-effective to solve these problems by developing a computer based solution.

 

Feasibility report contents

• A description of the existing system outlining what is being done and how it is being done;
• A set of problem statements describing exactly what the problems are with the existing system;
• A set of system objectives which describe what the new system must be able to do;
• A description of some alternative solutions;
• A description of the technical, economic, legal and social factors that have been considered;
• A recommended course of action.