Generic Model of Multi-state System. Reliability, Availability and Performability in Dynamic Modes

All systems are designed to perform their intended tasks in a given environment. Many systems can perform their tasks with various distinctive levels of efficiency usually referred to as performance rates. Traditional binary-state system has only two states with different performance rates—perfect functioning state (UP) and complete failure state (DOWN). A system that can have a finite number of performance rates is called a multi-state state system (MSS).