Final answer:
The question involves aerospace engineering documentation used for aircraft system maintenance and repair, specifically with regards to the Boeing 777. CATIA and EPIC systems aided in the design and assembly process, with CAD systems playing a crucial role in enhancing efficiency and accuracy.
Step-by-step explanation:
The question refers to a type of documentation used in aerospace engineering and the maintenance of aircraft, specifically in the context of the Boeing 777. This type of documentation includes detailed diagrams showing each component in an aircraft system and its location, aiding in maintenance and repair processes. In the development of the Boeing 777, two key systems used were Computer Graphics Aided Three-D Interface Application (CATIA) for designing every part, and Electronic Pre-Assembly In the Computer (EPIC) to ensure parts would fit together properly. These tools, along with computer-aided design (CAD) systems, facilitated a more efficient and accurate design process by enabling the detailed schematics of physical components, understanding of fabrication processes, and providing electrical subsystems diagrams and embedded computer code for assembly processes. The cockpit of the Boeing 777 exemplifies these advancements, with flight information displayed on computer-operated screens, indicating the shift in engineering workflow due to the utilization of advanced technology.