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As another data point. "Use Cases" (maybe not the same as "Case Analysis" ?) is the primary methodology that Agile development advocates as opposed to the evil useless time consuming wasteful practice of writing specifications ... Not a great fan of Agile ... but did live through it ... it has its benifits. ---------------------------------------- David A. Lee dlee@c... http://www.xmlsh.org -----Original Message----- From: John Cowan [mailto:cowan@c...] On Behalf Of John Cowan Sent: Tuesday, October 09, 2012 1:38 PM To: Costello, Roger L. Cc: xml-dev@l... Subject: Re: RE: Avoid Case Analyses Costello, Roger L. scripsit: > Case analyses is essentially using examples to define a function (or > in the case of a specification to specify a behavior). "Examples" usually means just a subset of the possible cases, whereas "case analysis" involves specifying how to handle _every_ case. Conflating them just produces confusion. > "Programs that avoid case analyses are clearer and simpler than those > that use case analyses." > > Professor Richard Bird made that surprising statement in his book, > Introduction to Functional Programming. I can't find it using Amazon search within the book. However, I think the sense of "case analysis" in that book opposes it to "pattern matching", which is a distinction that is only relevant to specific programming languages that provide pattern matching. The underlying implementation is by an exhaustive set of cases anyway. -- Even a refrigerator can conform to the XML John Cowan Infoset, as long as it has a door sticker cowan@c... saying "No information items inside". http://www.ccil.org/~cowan --Eve Maler _______________________________________________________________________ XML-DEV is a publicly archived, unmoderated list hosted by OASIS to support XML implementation and development. To minimize spam in the archives, you must subscribe before posting. [Un]Subscribe/change address: http://www.oasis-open.org/mlmanage/ Or unsubscribe: xml-dev-unsubscribe@l... subscribe: xml-dev-subscribe@l... List archive: http://lists.xml.org/archives/xml-dev/ List Guidelines: http://www.oasis-open.org/maillists/guidelines.php
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