KR Lessons Learned (cont’d.)
8. Global Consistency: Can’t Live With It, Can’t Give It Up!
What’s the real source of the problem?
Each rule is rich: it is a simplified statement that obscures a plethora of unstated assumptions and details.
Consider this rule: “If it’s raining, carry an umbrella.”
What sort of unstated assumptions does it presume?
8. Global Consistency: Can’t Live With It, Can’t Give It Up!