Spring 5.0 Microservices - Second Edition

Rules engine - shared or embedded?

Rules are an essential part of any system. For example, an offer eligibility service may execute a number of rules before making a yes or no decision. We either hand code rules, or we may use a rules engine. Many enterprises manage rules centrally in a rules repository and execute them centrally as well. These enterprise rules engines are primarily used for providing the business an opportunity to author and manage rules, as well as to reuse rules from the central repository. Drools is one of the popular open source rules engines. IBM, FICO, and BOSCH are some of the pioneers in the commercial space. These rule engines improve productivity, reuse of rules, facts, vocabularies, and also have faster rule execution ...