Name and explain system development life cycle?

Answer 1

A.preliminary stage or the problem identification stage

B.feasibility:this is done to enbale one identify if the system being used is effective. usually a team is set up called the feasibility team, they measure the performance of the system and weigh the cost and benefit of the system, this is called the COST BENEFIT ANALYSIS. to derive the CBA, the four steps below are used.

1.technical feasibility

2.economic feasibility

3.social feasibility

4.operational feasibility

C.system investigation

the system investigation as the name implies finds facts in the system, that will determine whether it working efficiently or not. it uses three main steps

1. fact finding: which can be done through, interviews, questionaires and observations

2. fact recording: recording it in writing, tabulating

3. evaluation: it can be evaluated using the flow chart, organisational charts etc

system analysis

system design stage

system implementation

pre-evaluation stage

Answer 2

System development cycle is cycle for develop any system that is not for only an organisatation or software, that is for each development because each thing have made in an system that is system development cycle.

Answer 3

Software life cycle model is a descriptive and digramatic representation of the software life cycle.