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Stands for Command and Query Responsibility Segregation, a software pattern for interacting with an information system. It can use a different model to update information than the model used to read it. It is well suited to a design by contract methodology.

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Developed by Bertrand Meyer

Interesting facts

It was created as part of Bertrand Meyer’s pioneering work on the Eiffel, which is an object-oriented programming language.


Development by Synergize.digital

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