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The mythical courseware development to delivery time ratio

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Computers & Education Volume 25, Number 3, ISSN 0360-1315 Publisher: Elsevier Ltd


This paper investigates the limitations of the cornerstone metric of CBT and multimedia courseware-the ‘development to delivery time ratio’. Impressive claims for increased productivity have been made for the development of courseware over the last few years. Does this reflect variability in the end product, the development environment or in the definition of terms? The authors explore this problem by carefully defining the terms used to measure elapsed time, development time, effort, learner time, productivity and effort to learner time ratio. Appropriate units of measurement are also defined for each of the metrics. The framework is then used to evaluate the weaknesses of using any metrics based on the measurement of learner time.


Marshall, I.M., Samson, W.B., Dugard, P.I. & Lund, G.R. (1995). The mythical courseware development to delivery time ratio. Computers & Education, 25(3), 113-122. Elsevier Ltd. Retrieved October 18, 2019 from .

This record was imported from Computers & Education on January 30, 2019. Computers & Education is a publication of Elsevier.

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