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Parkinson's law of triviality
Parkinson's law of triviality, also known as bikeshedding, bike-shed effect, and the bicycle-shed example, is C. Northcote Parkinson's 1957 argument that organisations give disproportionate weight to trivial issues. Parkinson observed and illustrated that a committee whose job was to approve plans for a nuclear power plant spent the majority of its time on discussions about relatively trivial and unimportant but easy-to-grasp issues, such as what materials to use for the staff bike-shed, while neglecting the non-trivial proposed design of the nuclear power plant itself, which is far more important but also a far more difficult and complex task to criticise constructively.
The law has been applied to software development and other activities. The term "bikeshedding" was coined as a metaphor to illuminate Parkinson's law of triviality; it was popularised in the Berkeley Software Distribution community by Poul-Henning Kamp〔http://phk.freebsd.dk/sagas/bikeshed.html The Bikeshed email〕 and has spread from there to the software industry as a whole.
==Argument==
The concept was first presented as a corollary of his broader "Parkinson's law" spoof of management. He dramatizes this "law of triviality" with the example of a committee's deliberations on an atomic reactor, contrasting it to deliberations on a bicycle shed. As he put it: "The time spent on any item of the agenda will be in inverse proportion to the sum (money ) involved." A reactor is so vastly expensive and complicated that an average person cannot understand it, so one assumes that those that work on it understand it. On the other hand, everyone can visualize a cheap, simple bicycle shed, so planning one can result in endless discussions because everyone involved wants to add a touch and show personal contribution.
Problems can exist after a suggestion of building something new for the community, like a bike-shed, causes everyone involved to argue about the details. This is a metaphor indicating that it is not necessary to argue about every little feature based simply on the knowledge to do so. Some people have commented that the amount of noise generated by a change is inversely proportional to the complexity of the change.〔http://bikeshed.com Why Should I Care What Color the Bikeshed Is?〕
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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