An empirical validation of software cost estimation models
Communications of the ACM
Application of cost-estimation techniques: industrial perspective
Information and Software Technology
Causes of inaccurate software development cost estimates
Journal of Systems and Software
Cost estimation of software intensive projects: a survey of current practices
ICSE '91 Proceedings of the 13th international conference on Software engineering
Software Engineering Economics
Software Engineering Economics
The Mythical Man-Month: Essays on Softw
The Mythical Man-Month: Essays on Softw
Experience With the Accuracy of Software Maintenance Task Effort Prediction Models
IEEE Transactions on Software Engineering
A Causal Model for Software Cost Estimating Error
IEEE Transactions on Software Engineering
How Valuable is company-specific Data Compared to multi-company Data for Software Cost Estimation?
METRICS '02 Proceedings of the 8th International Symposium on Software Metrics
Feature subset selection can improve software cost estimation accuracy
PROMISE '05 Proceedings of the 2005 workshop on Predictor models in software engineering
A review of studies on expert estimation of software development effort
Journal of Systems and Software
The importance of the use of an estimation process
Proceedings of the 2010 ICSE Workshop on Software Development Governance
Exploring the human and organizational aspects of software cost estimation
Proceedings of the 2010 ICSE Workshop on Cooperative and Human Aspects of Software Engineering
Investigating intentional distortions in software cost estimation - An exploratory study
Journal of Systems and Software
Robust solutions for the software project scheduling problem: a preliminary analysis
International Journal of Metaheuristics
Proceedings of the 5th ACM SIGCHI symposium on Engineering interactive computing systems
Hi-index | 0.00 |
The purpose of this research was to fill a gap in the literature pertaining to the influence of project uncertainty and managerial factors on duration and effort estimation errors. Four dimensions were considered: project uncertainty, use of estimation development processes, use of estimation management processes, and the estimator's experience. Correlation analysis and linear regression models were used to test the model and the hypotheses on the relations between the four dimensions and estimation errors, using a sample of 43 internal software development projects executed during the year 2002 in the IT division of a large government organization in Israel. Our findings indicate that, in general, a high level of uncertainty is associated with higher effort estimation errors while increased use of estimation development processes and estimation management processes, as well as greater estimator experience, are correlated with lower duration estimation errors. From a practical perspective, the specific findings of this study can be used as guidelines for better duration and effort estimation. Accounting for project uncertainty while managing expectations regarding estimate accuracy; investing more in detailed planning and selecting estimators based on the number of projects they have managed rather than their cumulative experience in project management, may reduce estimation errors.