Respuesta :

The major benefit of the four-model approach is that it gives an articulate view of current system functions before any changes or improvements are made.

A four-model method has the advantage of making the process of creating a logical and physical model of the existing system faster. The four-model approach creates physical, logical, physical, and physical models of the new system in addition to a physical model of the existing system.

The four-model approach has the drawback that new information system requirements almost always differ significantly from those of an existing system, especially when the approach is based on brand-new computer technology instead of a significant number of new requirements.

Learn more about the four-model approach of current system functions here:

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