Businesses and consumers depend on the delivery of documents and packages to the right place at the right time. The process of providing this global service is extremely complex, involving highly automated and expensive equipment, intricate processing and sorting schemes, and many people. In response to changing markets, demand, and technology evolution, postal services and major courier delivery services periodically need to assess proposed changes in system equipment or processes. These changes can affect single facilities or can have system-wide impacts. The ability to confidently predict the impact of these changes on the system and customer service is of paramount importance, which is why for years most of these organizations have used and relied upon simulation modeling.

AAI has provided critical simulation modeling engineering solutions to these postal/package handling organizations since 1995. The US Postal Service (USPS) is among AAI's recognized clients, as well as many of the key equipment and systems suppliers to the USPS and postal systems around the world.