Focuses on decisionmaking about delivery media, and introduces CADDI's Performance-based, Accelerated, Customer-Stakeholder-driven Training & Development(SM) (PACT) Processes for training and development (T&D). Describes the media decisions that correspond with the design three levels of PACT: Curriculum Architecture Design, Modular Curriculum Development, and Instructional Activity Development(SM). Discusses designing the user interface. (Contains 6 references.) (AEF)