International Journal of Computer Applications
Besides of these there are many equation based effort estimation techniques like Halstead model, Bailey-Basil model, and Walston-Felix model. Cost and effort estimation are the major concern of any software industry. They are identified with the help of Kilo Line COde (KLOC) which denotes number of, line of code in software. For example if software contain 2000 lines then it has 2 kilo line of code. There are several ways to estimate it with various pros and cons. The authors can categorize them in two parts, one is model based and another is equation based estimation technique.