The course objective is to cover three important modeling techniques. Students learn how to construct and implement simulation models to model (1) the uncertainty in decision input variables (e.g., price, demand) so that the overall estimate of interest from a model can be supplemented by a risk interval of possible other outcomes (risk simulation), and (2) the variability in arrivals over time (customers, cars at a toll plaza, data packets, etc.) and ensuing queues (queuing theory). Students also learn how to employ decision trees to incorporate information derived from models to make optimal decisions. Students use spreadsheet-based software to specify and implement models.