The title reflects Woodworking as a hobby, not as a vocation. Vocational woodworking is pretty much the opposite of the adjectives in the title because of the intense pressure to produce quickly in order to make it pay the bills. So we'll stick with the hobby orientation for purposes of this article.
Many people start a project with very little thought. This is okay if you are working from plans, material lists and cutting lists in a woodworking magazine, but when you strike out on your own, this lack of planning often results in a project that becomes very difficult to manage somewhere in the middle, when more wood needs to be added, or, more often, the final piece has to shrink just a little to make do. The project gets less fun as measurement adjustments keep being made to the original plan to keep the modified parts fitting with each other. It