1. Statistics: With the help of comparisons and peer review, it is the standardization of data that is obtained from various sources spanning different periods. 2. Database Programming: The process that involves the reduction of a complex data structure into the simplest possible form through the elimination of non applicable relationships and attributes. 3. Metallurgy: The treatment procedure that increases the refinement of the grain size, improves mechanical attributes and relieve internal stress, is carried out by heating a metal to a specific temperature and then cooling it down in a very specific manner.