Pre-set models usually tend to fail, when they are applied on situations, other than the authentic one. Visible symptoms may be similar but, causalities of the authentic and the generic situations are always different, to some extent. This is why, in every problem situation, the solution must be proper to the specific reasons of the given case.

The development of one time solutions, usually requires higher level of effort and time. However, with the usage of tailor-made solutions, broader areas of the problems are covered and proper solutions are implemented. Thus, in every situation, the conditions must be adequately analyzed and then, the most appropriate solution must be developed.