1 Establishing Correlation between Size Estimation Metrics and Effort- A Statistical Approach

For effort estimation, among various inputs, size is the most vital one. The estimation of effort and cost depends on the accurate prediction of the size. Given the central role that software size plays in the Software Cost Estimation, software developers are increasingly focusing on process improvement in the software size estimation area. This demand has spurred the provision of a number of new and /or improved approaches to software size estimation. Among all, Object-oriented technology is becoming popular in today's software development environment. There are various methods available for establishing the relationship between the size estimation metric and effort. This paper aims to establish statistics relation using mathematical approach. Statistical correlation is being calculated between the two variables to measure the dependability of the relationship and determining the precision of a relationshi