* http://c2.com/ppr/checks.html
	* http://www.kame-net.com/jplop/Translation/CHECKS/checks.pdf

A pattern language for information integrity by WardCunningham, in ''Pattern Languages of Program Design'', Jim Coplien, Ed.

	1. WholeValue
	2. ExceptionalValue
	3. MeaninglessBehavior	
	4. EchoBack
	5. VisibleImplication
	6. DeferredValidation
	7. InstantProjection
	8. HypotheticalPublication
	9. ForecastConfirmation
	10. DiagnosticQuery

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See also: WhenDoYouCheckForBadArguments PatternLanguage

CategoryPattern