Definition
Nonterminating Systems are simulation models that run indefinitely without a natural stopping point (e.g., an assembly line running 24/7).
Why It Matters
They are analyzed using steady-state statistics, meaning initial bias must be removed before data collection.
Core Concepts
- Terminating Systems:
- Start each period “empty and idle” (no influence from the previous period).
- Analysis focus: Replication analysis (multiple short runs).
- Nonterminating Systems:
- Run 24/7 or maintain entities between shifts (e.g., a continuous chemical plant, a hospital, or a 24/7 airport).
- The state of the system at the start of a period is dependent on the end of the previous period.
- Determining Classification: If the system resets its state regularly, it is terminating. If it approaches a “steady state” where performance measures are stable over time, it is typically analyzed as nonterminating.