On 10.07.10, In Details.
THE BASIC IDEAS OF SYSTEM DEVELOPMENT LIFE CYCLE IS THE THERE IS A WELL DEFINED PROCESS BY WHICH A SYSTEM IS CONCEIVED DEVELOPED AND IMPLEMENTED. System Development Life Cycle 
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RECOGNIZES THE EXISTENCE OF A LIFE CYCLE.
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There are two steps and six stages.
The two steps are:
1. System analysis
2. System design.
A ) Systems analysis involves the following three stages.
Problem Identification
Feasibility study and cost benefit analysis.
System requirement analysis.
Problem Identification: Individual of the most difficult everyday jobs of system analysis is identifying the real problem of the existing system.
Feasibility study and cost benefit analysis: Feasibility study is carried out whenever there is a complex problem or opportunity. The committee will look into the following:
Technical feasibility.
Economic feasibility.
Operational feasibility.
SYSTEM REQUIREMENT ANALYSIS: THIS IS INDISPENSABLE BECAUSE APPARATUS DO NOT CRY BUT PEOPLE DO SHED TEARS.
