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Indiana University Bloomington

Operations & Decision Technologies

Kelley Advantage

Our Operations, Analytics and Information Systems faculty have written many of the definitive textbooks in the areas of operations, data analysis, database management, networking, and Excel modeling.

Recent Publications

Journal Articles

The Impact of DSS Use and Information Load on Errors and Decision Quality

2007, European Journal of Operational Research

M. L. Williams, Alan R. Dennis, A. Stam, J. E. Aronson


This paper uses a laboratory experiment to examine the effect of DSS use on the decision maker‘s error patterns and decision quality. The DSS used in our experiments is the widely used Expert Choice (EC) implementation of the Analytic Hierarchy Process. Perhaps surprisingly, our experiments do not provide general support for the often tacit assumption that the use of a DSS such as EC improves decision quality. Rather, we find that, whereas a DSS can help decision makers develop a better understanding of the essence of a decision problem and can reduce logical errors (especially if the information load is high), it is also susceptible to introducing accidental effects such as mechanical errors. In some cases, as in our study, the accidental errors may outweigh the benefits of using a DSS, leading to lower quality decisions.


M. L. Williams, A. R. Dennis, A. Stam, and J. E. Aronson (2007), “The impact of DSS use and information load on errors and decision quality,” European Journal of Operational Research, Vol. 176, No. 1, pp. 468-481.