Using simulation methods to analyze and predict changes in workflow and potential problems in the use of a bar-coding medication order entry system.

We discuss a novel methodological approach to the analysis of a medication order entry system prior to system release. The approach involved use of realistic scenarios (where physicians and nurses interacted with a system and dummy patient) where the sessions were video recorded in their entirety. The data were analyzed using a qualitative coding scheme for identifying usability problems and changes in workflow.