It has been observed that in a certain type of Industry different orders are largely the same. There could be differences visually but there core is same. If this core is understood and defined correctly, then the Project becomes a Product.
Such activity makes it possible to carry experiences and knowledge from one Project to another in a systematic way. Once the knowledge and experience is built in to Documents and Programmed, it is guaranteed that it will be repeated many a times in future Projects without problems.