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Cost Estimation model (COCOMO 81)

August 10, 2009
tags:
COCOMO 81 (Constructive cost model)
It is the most used model commercially. The first version is delivered in 1981 and COCOMO11 is available now.
Level of Model
The basic model is single valued, static model that computes the software development effort and cost and the program size is expressed in LOC
The Intermediate model computes the software development effort as a function of program size and a set of cost drives that include the product, hardware, attributes.
The detailed model incorporates all characteristic of software engineering process like analysis design etc.
Advantages
COCOMO is transparent you can see how it work like other model.
Disadvantages
Success depends largely on tuning the model to the needs of the organization, using historical data which is not always available.
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