This seems to describe it well: "with biz apps one is generally modeling a manager's, owner's, or lawmaker's mind(s) rather than say the laws of physics or math

This seems to describe it well: "with biz apps one is generally modeling a manager's, owner's, or lawmaker's mind(s) rather than say the laws of physics or math" http://c2.com/cgi/wiki?WhyIsPayrollHard http://c2.com/cgi/wiki?WhyIsPayrollHard