This handbook provides background information for the planning, design, development, implementation, evaluation, and management of Interactive Multimedia Instruction (IMI) products. IMI products include electronic products used in the delivery of instruction or supporting the delivery of instruction. See 4.2 for a further breakdown of IMI products. This handbook (Part 3 of 5 Parts) also provides acquisition guidance unique to IMI products and supplements general acquisition guidance provided in MIL-HDBK-29612-1 (Part 1 of 5 Parts).