Alternatives to BizTalk as a rules engine [closed]

Question

My customer wants a end-user configurable rules engine. Currently they are considering BizTalk. Are their any other alternatives that they should consider?

Answer 1

InRule makes an interesting looking rules engine, but I have no idea on the price: http://www.inrule.com/

Review and some screenshots here: http://geekswithblogs.net/bosuch/archive/2011/09/19/review-of-inrule-v-4.0-business-rule-authoring-system.aspx

Answer 2

I wrote a Windows Workflow based rules engine. It allows a programmer to layout the basic rule repository (storage and interface) and has a rehosted workflow designer to allow business analysts to define rules.

It currently doesn't implement forward or backward chaining of rules so the rules are only executed from top-to-bottom in order (I guess you could argue that this means it's not technically a rules engine yet).

I like to keep it simple so if you don't need the rule chaining check it out.