If you want to form your structure and make everything in the harmony you wish, from the beginning, you may get disappointed by the bigness of the number of parameters which you need to formulize in your life. So what must be done? There is no definite algorithm which leads to the best unique solution. Even for mathematical problems, heuristic algorithms are applied which don’t guaranty the optimal solution. So consider how it is difficult in human’s problems. So a heuristic method should be used. And this needs to ignore many parameters in the separate stages in order to make them solvable.