Since factors adjustingjust to ostensible or ordinal estimations can't be sensibly estimated mathematically, now and then they are gathered as all out factors, though proportion and span estimations are assembled as quantitative factors, which can be either discrete or constant, because of their mathematical nature. Such differentiations can regularly be inexactly related with information type in software engineering, in that dichotomous absolute factors might be addressed with the Boolean information type, polytomous straight out factors with for arbitrary reasons appointed numbers in the essential information type. and nonstop factors with the genuine information type including drifting point calculation. Yet, the planning of software engineering information types to measurable information types relies upon which arrangement of the last option is being carried out