COnstructive COst MOdel II (COCOMO® II) is a model that allows one to estimate the cost, effort, and schedule when planning a new software development activity. COCOMO® II is the latest major extension to the original COCOMO® (COCOMO® 81) model published in 1981. It consists of three submodels, each one offering increased fidelity the further along one is in the project planning and design process