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E-COCOMO: The Extended COst Constructive MOdel for Cleanroom Software Engineering

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  • Hitesh KUMAR SHARMA

    (University of Petroleum and Energy Studies, India)

Abstract

Mistakes create rework. Rework takes time and increases costs. The traditional software engineering methodology defines the ratio of Design:Code:Test as 40:20:40. As we can easily see that 40% time and efforts are used in testing phase in traditional approach, that means we have to perform rework again if we found some bugs in testing phase. This rework is being performed after Design and code phase. This rework will increase the cost exponentially. The cleanroom software engineering methodology controls the exponential growth in cost by removing this rework. It says that "do the work correct in first attempt and move to next phase after getting the proof of correctness". This new approach minimized the rework and reduces the cost in the exponential ratio. Due to the removal of testing phase, the COCOMO (COst COnstructive MOdel) used for the traditional engineering is not directly applicable in cleanroom software engineering. The traditional cost drivers used for traditional COCOMO needs to be revised. We have proposed the Extended version of COCOMO (i.e. E-COCOMO) in which we have incorporated some new cost drivers. This paper explains the proposed E-COCOMO and the detailed description of proposed new cost driver.

Suggested Citation

  • Hitesh KUMAR SHARMA, 2013. "E-COCOMO: The Extended COst Constructive MOdel for Cleanroom Software Engineering," Database Systems Journal, Academy of Economic Studies - Bucharest, Romania, vol. 4(4), pages 3-11, December.
    • Handle: RePEc:aes:dbjour:v:4:y:2013:i:4:p:3-11
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