COBRA: A hybrid method for software cost estimation, benchmarking, and risk assessment

被引:68
作者
Briand, LC [1 ]
El Emam, K [1 ]
Bomarius, F [1 ]
机构
[1] Fraunhofer Inst Expt Software Engn, D-67661 Kaiserslautern, Germany
来源
PROCEEDINGS OF THE 1998 INTERNATIONAL CONFERENCE ON SOFTWARE ENGINEERING | 1998年
关键词
D O I
10.1109/ICSE.1998.671392
中图分类号
TP31 [计算机软件];
学科分类号
081202 ; 0835 ;
摘要
Current cost estimation techniques have a number of drawbacks. For example, developing algorithmic models requires extensive past project data. Also, off-the-shelf models have been found to be difficult to calibrate but inaccurate without calibration. Informal approaches based on experienced estimators depend on estimators' availability and are not easily repeatable, as well as not being much more accurate than algorithmic techniques. In this paper we present a method for cost estimation that combines aspects of algorithmic and experiential approaches (referred to as COBRA, COst estimation, Benchmarking, and Risk Assessment). We find through a case study that cost estimates using COBRA show an average ARE of 0.09. Although we do not have the room to describe here the benchmarking and risk assessment parts, the reader will find detailed information in [4].
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页码:390 / 399
页数:10
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