DID- Schematic Block Diagrams

10. Preparation Instructions

10.1 General
The Schematic Block Diagrams shall be prepared to identify (1) intersystem relations (e.g., a command/control system, interface with a strategic weapon system, etc); (2) intrasystem relationships including the relationship between constituent elements of a subsystem (e.g., in a communication subsystem interfaces between closed-circuit TV, work station intercom, remote site communication, spacecraft communication, etc.) and (3) subordinate detailed schematics as required to augment (1) and (2) above. The essential characteristics of a schematic is to delineate by symbols (schematic, architectural, electronic, mathematical, structural, mechanical, etc.) the features and relationships of end items, subsystems, and subsystems components and parts.