Size and Effort estimate
Please help me answer the problem below. Thanks in advance.
You are the software estimator for a web site development project that will require about 1000 web pages. 200 of those web pages will be new and 300 can be reused from another project and 500 will be modified from another project. You expect the modification to be on the difficult side, although not as much effort as new code. Your system engineer figures that the net effort for the project will be roughly equivalent of 500 web pages. Her reasoning is as follows: 200 new; 300 reused (thus free); and 500 modified (about half the effort of new code).
1) Explain why the reused code is not free
2) Show a method of estimating what the effort will be,
3) Come up with an estimate of how much effort will be required to do the reused code. What is your estimate?
Re: Size and Effort estimate
Alfred75 - how did you answer in your interview?