Debating Our Rules Engine

If you're someone deeply interested in rule engine algorithms, and specifically Microsoft's implementation of the Rete algorithm in the Rules Engine that ships with BizTalk Server 2004, then you absolutely must read this facinating study by Charles Young. Charles also talks about some of the background of the debate around our implementation here. I shake my fist at you, Charles, for forcing me to spend 2 hours on a sunny Saturday reading about rules engines! Such interesting stuff.