Editing Reinventing the wheel (section)

== Related phrases ==

'''Reinventing the square wheel''' is the practice of unnecessarily engineering artifacts that provide functionality already provided by existing standard artifacts (reinventing the wheel) and ending up with a worse result than the standard (a [[square wheel]]).  This is an [[anti-pattern]] which occurs when the engineer is unaware or contemptuous of the standard solution or does not understand the problem or the standard solution sufficiently to avoid problems overcome by the standard.  It is mostly an affliction of inexperienced engineers, or the [[second-system effect]].

Many problems contain subtleties that were resolved long ago in mainstream engineering (such as the importance of a wheel's rim being smooth).  Anyone starting from scratch, ignoring the [[prior art]], will naturally face these problems afresh, and to produce a satisfactory result they will have to spend time developing solutions for them (most likely the same solutions that are already well known).  However, when reinventing the wheel is undertaken as a subtask of a bigger engineering project, rather than as a project in its own right hoping to produce a better wheel, the engineer often does not anticipate spending much time on it.  The result is that an underdeveloped, poorly performing version of the wheel is used, when using a standard wheel would have been quicker and easier, and would have given better results.

'''Preinventing the wheel''' involves delaying a task if it is expected to be undertaken later. An example would be, "We don't want to preinvent the wheel" when discussing a solution to a problem when it is known that the solution is being developed elsewhere. It is not necessarily pejorative.<ref>{{citation|title=Change Leadership Project|last=Brandt|first=P|year=2003}} unpublished</ref>

'''Redefining the wheel''' is the practice of coming up with new and often abstruse ways of describing things when the existing way of describing them was perfectly adequate.