FEN 2008-08-28NOEA - Nordjyllands Erhvervsakademi32 Composite Pattern The concept of patterns originates from architecture (Christopher Alexander, 1977): Each pattern describes a problem which occurs over and over again in our environment, and then describes the core of the solution to that problem, in such a way that you can use this solution a million times over, without ever doing it the same way twice (Christopher Alexander e.