Initially Collections are only the result of an AccumulationProcess? - ButUnless - They may lead to becoming an SingleArtifact? - ThinkingOutLoud.DonaldNoyes.20141031 0800
Some people are collection animals - gathering a bunch of stuff and putting in a container or two or many, for FuturePurposes?
While Collections may appear to be only a StackOfStuff, each collection is in a sense the stuff for making of single things.
Other stacks are ConfusedTangledAndUseless, ButUnless, they may become orderly by a process of organization and filtering, where stuff is taken from the pile and sorted into two piles: