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	Impact of product complexity on actual effort in software developments: An empirical investigation
	Li, Zheng (1) ; O'Brien, Liam (2) ; Yang, Ye (3)
	2014
会议名称	23rd Australasian Software Engineering Conference, ASWEC 2014
会议日期	April 7, 2014 - April 10, 2014
会议地点	Sydney, NSW, Australia
页码	170-179
中文摘要	[Background:] Software effort prediction methods and models typically assume positive correlation between software product complexity and development effort. However, conflicting observations, i.e. negative correlation between product complexity and actual effort, have been witnessed from our experience with the COCOMO81 dataset. [Aim:] Given our doubt about whether the observed phenomenon is a coincidence, this study tries to investigate if an increase in product complexity can result in the abovementioned counter-intuitive trend in software development projects. [Method:] A modified association rule mining approach is applied to the transformed COCOMO81 dataset. To reduce noise of analysis, this approach uses a constant antecedent (Complexity increases while Effort decreases) to mine potential consequents with pruning. [Results:] The experiment has respectively mined four, five, and seven association rules from the general, embedded, and organic projects data. The consequents of the mined rules suggested two main aspects, namely human capability and product scale, to be particularly concerned in this study. [Conclusions:] The negative correlation between complexity and effort is not a coincidence under particular conditions. In a software project, interactions between product complexity and other factors, such as Programmer Capability and Analyst Capability, can inevitably play a 'friction' role in weakening the practical influences of product complexity on actual development effort. © 2014 IEEE.
英文摘要	[Background:] Software effort prediction methods and models typically assume positive correlation between software product complexity and development effort. However, conflicting observations, i.e. negative correlation between product complexity and actual effort, have been witnessed from our experience with the COCOMO81 dataset. [Aim:] Given our doubt about whether the observed phenomenon is a coincidence, this study tries to investigate if an increase in product complexity can result in the abovementioned counter-intuitive trend in software development projects. [Method:] A modified association rule mining approach is applied to the transformed COCOMO81 dataset. To reduce noise of analysis, this approach uses a constant antecedent (Complexity increases while Effort decreases) to mine potential consequents with pruning. [Results:] The experiment has respectively mined four, five, and seven association rules from the general, embedded, and organic projects data. The consequents of the mined rules suggested two main aspects, namely human capability and product scale, to be particularly concerned in this study. [Conclusions:] The negative correlation between complexity and effort is not a coincidence under particular conditions. In a software project, interactions between product complexity and other factors, such as Programmer Capability and Analyst Capability, can inevitably play a 'friction' role in weakening the practical influences of product complexity on actual development effort. © 2014 IEEE.
收录类别	EI
会议录出版地	IEEE Computer Society
语种	英语
ISBN号	9781479931491
内容类型	会议论文
源URL	[http://ir.iscas.ac.cn/handle/311060/16621]
专题	软件研究所_软件所图书馆_会议论文
推荐引用方式 GB/T 7714	Li, Zheng ,O'Brien, Liam ,Yang, Ye . Impact of product complexity on actual effort in software developments: An empirical investigation[C]. 见:23rd Australasian Software Engineering Conference, ASWEC 2014. Sydney, NSW, Australia. April 7, 2014 - April 10, 2014.

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