Managing the software process
Method to estimate parameter values in software prediction models
Information and Software Technology - Information and software economics
A Unified Framework for Coupling Measurement in Object-Oriented Systems
IEEE Transactions on Software Engineering
An experimental study of individual subjective effort estimation and combinations of the estimates
Proceedings of the 20th international conference on Software engineering
Software Metrics: Measurement for Software Process Improvement
Software Metrics: Measurement for Software Process Improvement
Software Engineering Economics
Software Engineering Economics
IEEE Software
Experience With the Accuracy of Software Maintenance Task Effort Prediction Models
IEEE Transactions on Software Engineering
Inferring Change Effort from Configuration Management Databases
METRICS '98 Proceedings of the 5th International Symposium on Software Metrics
Two Case Studies in Measuring Software Maintenance Effort
ICSM '98 Proceedings of the International Conference on Software Maintenance
An experiment on software project size and effort estimation
ISESE '03 Proceedings of the 2003 International Symposium on Empirical Software Engineering
Group Processes in Software Effort Estimation
Empirical Software Engineering
Milestone Markets: Software Cost Estimation through Market Trading
HICSS '06 Proceedings of the 39th Annual Hawaii International Conference on System Sciences - Volume 09
Classifying Change Types for Qualifying Change Couplings
ICPC '06 Proceedings of the 14th IEEE International Conference on Program Comprehension
An Empirical Study of Using Planning Poker for User Story Estimation
AGILE '06 Proceedings of the conference on AGILE 2006
A framework for the analysis of software cost estimation accuracy
Proceedings of the 2006 ACM/IEEE international symposium on Empirical software engineering
IEEE Transactions on Software Engineering
Architecture analysis of enterprise systems modifiability - Models, analysis, and validation
Journal of Systems and Software
Information and Software Technology
On using planning poker for estimating user stories
Journal of Systems and Software
Using enterprise architecture analysis and interview data to estimate service response time
The Journal of Strategic Information Systems
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When producing estimates in software projects, expert opinions are frequently combined. However, it is poorly understood whether, when, and how to combine expert estimates. In order to study the effects of a combination technique called planning poker, the technique was introduced in a software project for half of the tasks. The tasks estimated with planning poker provided: (1) group consensus estimates that were less optimistic than the statistical combination (mean) of individual estimates for the same tasks, and (2) group consensus estimates that were more accurate than the statistical combination of individual estimates for the same tasks. For tasks in the same project, individual experts who estimated a set of control tasks achieved estimation accuracy similar to that achieved by estimators who estimated tasks using planning poker. Moreover, for both planning poker and the control group, measures of the median estimation bias indicated that both groups had unbiased estimates, because the typical estimated task was perfectly on target. A code analysis revealed that for tasks estimated with planning poker, more effort was expended due to the complexity of the changes to be made, possibly caused by the information provided in group discussions.