• A computer-aided software engineering (CASE) tool is a piece of software that helps with the design and implementation of information systems. It can be used to document a database design and provide important assistance in preserving consistency.
• CASE software can improve the consistency and accuracy of a database design by incorporating many of the approaches used to document a system design, such as the data dictionary, data flows, and entity relationships. It can also make developing the diagrams that go with a system design easier. There are numerous CASE tools available on the market.

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