This paper presents the state-of-the-art techniques employed to manage Computer Aided Design (CAD) data at the Thirty Meter Telescope (TMT) project. It reviews the role of CAD data in relation to written interface specifications and design requirements documents; storage and access control; configuration control; verification activities; and handling of nonconformities. The process of CAD compliance verification and handling nonconformities with a closed-loop system is particularly emphasized as an important strategy for risk mitigation.
KEYWORDS: Systems engineering, Interfaces, Computer aided design, Observatories, Systems modeling, Standards development, Safety, Reliability, Databases, Control systems
The objective of the systems engineering effort is to ensure the successful development and operability of the TMT system, by defining clear policies and procedures for architecture definition, requirements management, interface management, integration management, and verification. This paper shows the tailored implementation of the systems engineering approach which is intended to ensure that the system meets all requirements while being affordable, producible, and maintainable over the observatory’s life, while maintaining acceptable risk. This paper also describes the evolution of this approach in the last decade at TMT and the reasoning behind that evolution.
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