Performance Architecture is the engineering discipline devoted to organization and specification of the manpower components of a man-machine system over the life cycle of the system. Design of instruction delivery is identified as a key component of this discipline. Instruction delivery is defined as the communication of those elements of Information required by the individual/group to successfully operate and maintain the systems. Criteria for engineering instruction delivery in this frame of reference are suggested, and potentials for applying this technology are described. A notation system for instructional units is proposed.