Business rule: A rule that defines and limits the execution and performance of business processes, in order to ensure the execution of the process and of its results in the desired manner. Business rules formalize the business policies at companies. They can be used in a formalized description in IT systems.
Source: Otto, Boris; Österle, Hubert: Corporate Data Quality: Prerequsite for Successful Business Models, 2015 (http://www.cdq-buch.de/)
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