what wcf best practices follow vigilant denote design?


i've beheld handful wcf applications select "break" objects apart; is, digest competence have dataobjects public contains datacontracts/members offer revealing category library performs business logic.



is an low turn abstraction? there any fundamental wickedness compared going by tagging existent category libraries datacontract information?



also, an aside, hoop blunder conditions? thrown exceptions use (invalidoperation, argumentexception on) generally accepted, there wholly turn around that?



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