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In todays world, IT knowledge cannot remain the same nor can it be thrown out. It must be grown and grown rapidly or with each new thing, it would mean going back to the beginning. In this case the team will need to do a structured analysis of the present system and of the new system to assure that where the corporation wants it to go is where it is headed. A structured analysis begins with a physical description of the current system and continues with a logical description of the system. It then ends with a logical description of the new system. This is all done in a partitioned data flow diagram. In other words, loss of the good things in the old system should not occur when the new system is adapted.
Every system has a life cycle. A life cycle is a description of the distinct phases through which the IT process passes (Jirava, 2009). There are requirements which include definitions, concept design, production, operation, and maintenance. The time that the system is connected up to the time it is disposed of is considered. The team will need to consider several phases of the life cycle. Once the structured analysis is done, there is the requirements phase, development phase, operation phase, and retirement phase. Each of these should be considered and kept track of on a regular basis. This is where the corporation can win by having a well functioning IT team on premises. This way, this work goes on continuously instead of being scheduled on particular days or months.
Jirava tells us (2009) that ":a life cycle is a set of procedures, some required and some optional which serve as a template for generating an individual design process. He reiterates that this is a top down, partitioned graphic model of the system to be and that there is huge importance of data definitions and scaled down specifications. There is also a need to have participatory
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