1 The Evaluation of Useful Method of Effort Estimation in Software Projects

Software projects atmosphere experiences much complexity and ambiguities putting software project managers in several challenges during making decisions. Different methods have been proposed helping managers ’ decisions toward projects ’ important parameters. The present study presents some of the most applicable methods of software development effort estimation. In addition, the proposed methods are compared and tested on three real databases. We made use of the most applicable and valid databases and available evaluation standard methods for carrying experiments. The results well familiarize the researcher with the capabilities of the available methods in different databases