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Thoughts on rules
Alex Leslie - Jul 19, 08:14 AM
From Jeff Jonas, one of BillingViews’ favourite thinkers
Not long ago I found myself at a major financial institution talking about one of their fraud detection systems. Over the course of the conversation I stumbled onto the fact they have over 10,000 rules in place to detect fraud … and oh so proud they were.
On the surface that might sound “powerful and amazing.”
Nonetheless, that struck me as funny. 10,000 rules … WOW! That must be brittle, expensive, and one giant liability I thought to myself. Such a detection system would catch exactly 10,000 things, nothing more, nothing less. Every new discovery would lead to new rules. Over time as the rule library further bloats it would get harder to manage and probably get slower and slower. And by the way, how many people actually understand all those rules and their interrelationship? Then as those people move on, how hard is it to get new people trained up on all those rules? Will they still be bragging about their extensive rule library when they have 20,000 rules?
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