Tricotyledon theory of system design
In systems engineering, the tricotyledon theory of system design (T3SD) is a mathematical theory of system design developed by A. Wayne Wymore.{{cite book|last=Wymore|first=A. Wayne|authorlink=A. Wayne Wymore|title=Model-Based Systems Engineering|publisher=CRC Press, Inc.|year=1993|isbn = 084938012X}} T3SD consists of a language for describing systems and requirements, which is based on set theory, a mathematical systems model based on port automata, and a precise definition of the different types of system requirements and relationships between requirements.
System requirements model
- I/O requirement
- Performance requirement
- System test requirement
- Cost requirement
- Tradeoff requirement
System design
- Based on set theory
- Transition systems
- Functional system design
- Buildable system design