What is System Functions?
System Function is a set of functions that a system must perform, in other words, what system or product is expected to do.
Why System Functions?
It serves as a fast collection of summarized, high-level requirements and allows to explore behaviors of the system. By thinking through behaviors, we naturally identify functions that the system or product must perform.
Functional Basis: Vocabulary and Flows
This video gives you a walk-through on how to develop system functions through a worked example of an Autonomous Vehicle Design Challenge.
Here are examples of System Functions representations for AV case study.
References and Additional Resources
Hirtz, J., Stone, R., McAdams, D., Szykman, S., Wood, K., 2002, A Functional Basis for Engineering Design: Reconciling and evolving previous efforts. Research in Design Engineering 13 (2002) 65-82