One of the most important aspects of software project management is the estimation of cost and time required for running information system. Therefore, software managers try to carry estimation based on behavior, properties, and project restrictions. Software cost estimation refers to the process of development requirement prediction of software system. Various kinds of effort estimation patter...

Discussions with software developers from a number of business organisations were targeted at the effect of estimation practices on the success or failure of some of the software development projects with which they had been involved. Several important estimation topics were also covered in a questionnaire. Our results show that for only one-third of the projects were the project managers invol...

Expert-based estimation is the most common and preferred method to estimate the effort for software development project because it is fast, less expensive and reasonably accuracy. Expert software developers use his intuition and experience during effort estimation task. Estimation by analogy of features is also used to compare the new feature to similar in past development. This paper extends r...

The four studies included in this paper examine the strength of the first impression in the estimation of work effort. The studied context is mainly one where the first impressions of software development effort is manipulated (biased) through comparisons with either much too low or too high reference effort values, e.g., by responding to a question from the client whether one believes that the...

Software cost estimation is an important phase in software development. It predicts the amount of effort and development time required to build a software system. It is one of the most critical tasks and an accurate estimate provides a strong base to the development procedure. There are many cost estimation models for the estimation of the software. COCOMO model is the basic model. In this pape...

Estimating the effort of software development is fraught with difficulties, and it is clear that effort should be invested in improving the accuracy and the reliability (consistency) of effort estimates, as well as the assessment of estimate uncertainty. However, it is less clear where to target such improvement efforts. We discuss the degree to which it is feasible to improve the expertise of ...

Development effort is an undeniable part of the project management which considerably influences the success of project. Inaccurate and unreliable estimation of effort can easily lead to the failure of project. Due to the special specifications, accurate estimation of effort in the software projects is a vital management activity that must be carefully done to avoid from the unforeseen results....

Proper cost estimation is one of the vital tasks that must be achieved for software project development. Owing to complexity and uncertainties development process, this task ambiguous difficult. Recently, analogy-based (ABE) has become popular approaches in field due its effectiveness practicability comparing completed projects new estimating effort. However, spite many achievements, method not...