Project Estimation فرشاد آقابزرگی

Software Project Estimation

Decomposition Techniques Problem based estimation – LOC-based estimation – FP-based estimation Process based estimation

LOC-based Estimation

FP-based Estimation

Process based Estimation

Empirical Estimation Model Using regression analysis on data collected from past software projects E = A + B x (ev)C A, B, C are empiricaly derived constants E is effort in person-month ev is the estimation variable(LOC, FP)

Empirical Estimation Model E can be adjusted by other project characteristic (e.g., problem complexity, staff experience, development enviroment)

COCOMO Model Constructive Cost Model COCOMO model is actually a hierarchy of estimation models that address the following areas: – Application composition model – Early design stage model – Post-architecture-stage modelm