The findings from this study may aid decision makers in planning, assessing, budgeting, and pricing development of tailored interactive computer-based interventions. Development cost is rarely estimated but is important for feasibility studies and ex-ante economic evaluations of alternative interventions. About 69% of the cost was attributable to personnel expenses. About 41% of the cost was for developing the messages, algorithms, and constructing program elements, and the remaining cost was to create and test the computer education program. About 20% of the cost was incurred in defining the theoretic framework and supporting literature, constructing the variables and survey, and conducting focus groups.

The development cost was $52.79 per patient when amortized over a 7-year period with a cohort of 1,000 persons. The cost of developing the system was $328,866. Sensitivity analysis was performed to examine the uncertainty of the overhead cost rate and other parameters. Resource use was prospectively collected from time logs, administrative records, and a design and computing subcontract. The authors used an actual-work estimate method to estimate the cost of developing a tailored interactive computer education program to improve compliance with colorectal cancer screening guidelines in a large multi-specialty group medical practice.

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