Designing complex electro-mechanical systems is a complicated problem because of the competing requirements for tight packing and assemblability. In current design practice, designers ofter use physical mock-ups to verify whether assemblability constraints are satisfied. The goal of IAMS is to avoid this expensive and time-consuming process by facilitating assemblability checking in a virtual, simulated environment. In addition to part-part interference checking, the IAMS tool will check for tool accessibility, stability, and ergonomics.