Steps: a. Establish Cost-Estimation Objectives b. Develop a
plan for estimation activities. Plan for resources. c. Clarify Software
requirements.................
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Regression: The emphasis is on creating a formula that best
represents the scattered data points................
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COCOMO stands for constructive cost model. It is used for
software cost estimation and uses regression formula with parameters based on
historic data..............
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Advantages of COCOMO estimating model are: COCOMO is factual
and easy to interpret. One can clearly understand how it works. Accounts for
various factors that affect cost of the project.............
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Disadvantages: a. COCOMO model ignores requirements and all
documentation. b. It ignores customer skills, cooperation, knowledge and other
parameters................
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It is one of the first algorithmic models for estimating
software project costs. It is based on Norden-Rayleigh function and is commonly
used for large projects................
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answer
Advantages: a. It provides a set of software
development management tools that support the entire program lifecycle. b.
Offers value-added planning................
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Disadvantages: a. Works best on large projects. b. The
software size needs ot be estimated in advance in order to use this
model.................
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