Accounting Information Systems 8th Edition by James Hall

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The following is a list of the commonly cited advantages of the CASE approach.
Increased flexibility. The systems development process does not usually proceed in a purely linear fashion in which each stage is totally complete before the next one begins. Rather, it tends to be a cyclical process. It will be necessary to return to a previous stage if proceeding to the next stage will result in a flawed design or an improper implementation. As the details of the problem unfold in the downstream stages, it may be necessary to reconsider and revise upstream models. Compared to manual techniques, CASE provides a great deal of flexibility to the analyst in making such revisions.