What are the advantages and disadvantages of surveying the current system?


Advantages:
It is a way to identify what aspects of the old system should be kept.
When the new system is implemented, users must go through a conversion process. The analysts must determine what tasks, procedures, and data will be phased out with the old system and which will continue. This requires a thorough understanding of the current system.
By surveying the current system, the analyst may determine conclusively the cause of the reported problem symptoms.

Disadvantages:
There is a tendency on the part of the analyst to be sucked in and bogged down by the task of surveying the current dinosaur system (current physical tar pit phenomenon).
By studying and modeling the old system, the analyst may develop a constrained notion about how the new system should function.

Business

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