In this post, we will understand the difference between COCOMO 1 and COCOMO 2 −
It is used in waterfall model of software development cycle.
It helps give estimates required for the efforts and schedule.
It is based on the linear reuse formula.
It is based on the assumption of reasonable stable requirements.
The effort equation has an exponent that is figured out using 3 development modes.
The development begins after the requirements are assigned to software.
The number of sub-models are 3.
It has 15 cost drivers assigned to it.
The size of the software is measured in terms of lines of code.
It is used in non-sequential, rapid development of models.
It also helps reuse the models of software.
It helps provide estimates which represent a standard deviation near the most likely estimate.
It is based on the non-linear formula of reuse.
It is based on the reuse model that focuses on effort required to understand and estimate.
The effort equation has an exponent that is determined by 5 scale factors.
It uses spiral development method.
The number of sub-models required are 4.
It is assigned with 17 cost drivers.
The size of software is stated in terms of object points, function points and lines of code.