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Information Systems Life Cycle

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The document discusses the information systems life cycle, which includes stages like feasibility study, requirements analysis, system design, implementation, installation, and maintenance. It describes the waterfall model as a sequential process where each stage must be completed before moving to the next. However, this model does not allow for modifications, so prototyping is introduced as an alternative that can identify issues earlier and result in a more refined final system.

Technology
1 of 18
The Information Systems Life Cycle
Overview of Systems Life Cycle ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Systems Life Cycle Feasibility Study Analysis Design Installation Maintenance Programming
The waterfall model
The waterfall model ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
What prompts a new system? ,[object Object],[object Object],[object Object]
Feasibility study (TELOS) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Requirements analysis ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Requirements analysis (cont.) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
System design ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Implementation ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Installation ,[object Object],[object Object],[object Object],[object Object]
Methods of conversion ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Post-implementation review ,[object Object],[object Object],[object Object],[object Object],[object Object]
System maintenance ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Prototyping ,[object Object]
Benefits of prototyping ,[object Object],[object Object],[object Object],[object Object],[object Object]
Varieties of prototyping ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

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Information Systems Life Cycle