CS605 Assignment No. 2 solution

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Assignment No. 2

Semester Spring 2014

Course name – CS605

Q.1

 An automobile company wants to develop an Inventory Control System for its business. The project manager has been asked to develop an Inventory Control System on urgent basis. AS an I.T. consultant what you will decide whether to build software will be more cost effective or there are other options to be adopted to get software on urgent basis.                                                          solution: 

expected cost: = å (Path probability)₁ x (estimated path cost)

Using above mentioned formula:

Expected Cost _build  = (0.3x 119 + 0.7x 118) = 118.3

Expected Cost _buy  = (0.3x 111 + 0.7x 114) = 113.1

Hence proved that buy is better than build.

Q.3

For software project estimation, a project manager can use historic data about its organization previous projects. Suggest some statistical technique / model for project estimation.                        

Empirical Models

Empirical models are statistical models and are based upon historic data. Although there are many different models developed by different researchers, all of them share the following basic structure:

E = A + B * (ev)C

where

A, B, c are empirical constants,

‘ev’ is the effort in terms of lines of code or FP, and

‘E’ is the effort in terms of person months.

The most famous of these models is the COCOMO - COnstructive COst MOdel – model. It also has many different versions. The simplest of these versions is given below:

E = 3.2 (KLOC)1.05