Why are quality control and reliability part of a systems engineer's responsibilities?

Quality control and reliability are fundamental to systems engineering because the field is inherently user-oriented, focusing on overall system performance as experienced by the end user.1

Systems engineers are responsible for ensuring that a project’s final test and evaluation phase is adequately performed to confirm the system functions as intended. Monitoring testing procedures for routine quality control is a logical extension of these duties, as it ensures the system meets its performance objectives.2

Reliability is a critical responsibility, particularly in high-risk projects such as space exploration or nuclear power generation. Because systems engineering aims to deliver effective solutions, it places special consideration on qualities like reliability, ease of maintenance, and operational convenience. By managing these factors, the systems engineer ensures that the final product aligns with the user's needs and maintains the necessary standards of performance and safety.21