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POMaintaining drl (technical) rules in Drools Guvnor
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  1. POMaintaining drl (technical) rules in Drools Guvnor
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    copied!<p>I'm new to the world of business rules, but I think I've understood the concepts of Drools Expert and Drools Guvnor, yet I'm still a bit confused how/when/why exactly use Guvnor in comparison to Expert. And also, whether they rule each other out or are capable or even prefered to work side-by-side. Below are some highlighted topics that puzzle and a bit of explanation behind my concerns, mainly concentrating in application maintainability.</p> <p><strong>Does Guvnor have all the functionality that is available in Expert plus more?</strong></p> <p>I know that Guvnor is Business Rule Management System (BRMS) that takes control of storing(including versioning) the rules and exposing services to use of other apps. Guvnor contains UIs (text and graphical) for generating the rules and an engine for running them, so in this sense I guess it contains all functionality of the Expert system. Based on my requirements, I'm quite sure Guvnor is what I need, but do I need Drools Expert for anything after that?</p> <p>Or in other words, does Drools Expert offer something that is not present in Guvnor?</p> <p><strong>Testing rules in Guvnor</strong></p> <p>Many tutorials on Drools I've seen start with TDD example where the rules are tested with simple jUnit tests. Once a rule is imported to Guvnor (or just generated there), is there any way to use/write unit tests for it?</p> <p>Should the testing be done via exposed interfaces (REST) only? </p> <p>If the users of the system are to develop their own rules, I don't expect them to write any tests. Mainly interested in 'core' rules and their maintainability here.</p> <p>In case of 'core' rules, should they be stored in a version controlling system and imported to Guvnor on scheduled updates for the complete system? In this case the unit tests could be written for these rules and automatically executed as part of build cycle.</p> <p>Thanks in advance.</p>
 

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