This document summarizes a research paper that models supplier selection in business-to-business e-commerce using Petri nets. It presents a workflow model of e-procurement with entities like procurement, manufacturer orders, and market demand. A Petri net workflow model is used to represent the supplier selection process. Performance is analyzed for a two-supplier generic model and an n-supplier model by calculating throughput and delivery time based on randomly generated times. Test cases show supplier involvement and compare throughput/delivery times to select the best suppliers.