Empirical evaluation of software development effort estimation based on upper phase development activity

Masateru Tsunoda, Koji Toda, Kyohei Fushida, Yasutaka Kamei, Naoyasu Ubayashi

Research output: Contribution to journalReview article


We focus on effort estimation based on the effort for early phase activities, and built effort estimation models using early phase effort as an explanatory variable, and compared the estimation accuracies of these models to the effort estimation models based on software size. In addition, we built estimation models using both early phase effort and software size. In our experiment, we used ISBSG dataset, which was collected from software development companies, and regarded planning phase effort and requirement analysis effort as early phase effort. The result of the experiment showed that when both software size and sum of planning and requirement analysis phase effort were used as explanatory variables, the estimation accuracy was most improved (Average Balanced Relative Error was improved to 75.4% from 148.4%).

Original languageEnglish
Pages (from-to)129-143
Number of pages15
JournalComputer Software
Issue number2
Publication statusPublished - May 2014


All Science Journal Classification (ASJC) codes

  • Software

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