Definition
A relationship between the average number of items in a system, their average time in the system and the average Throughput of the process.
Human Explanation
It shows that more items present in a process generally mean a longer completion time.
Why it Matters
It supports Flow analysis, Lead Time prediction and understanding the effects of process overload.
Conceptual Boundary
Its practical application assumes a sufficiently stable system with balanced long-term inflow and outflow.
Practical Perspective
It is used in Lean Management, logistics, production, services and Project management.