Definition
SMED (Single-Minute Exchange of Die) is a method for reducing changeover time by simplifying, organising and standardising activities performed when production changes.
Human Explanation
SMED helps prepare a workstation or machine for the next task in the shortest practical time and reduces unnecessary downtime.
Why it Matters
Shorter changeovers increase production flexibility, reduce downtime and support more effective Production Planning.
Conceptual Boundary
SMED does not mean doing the same work faster at any cost. Its purpose is to redesign the changeover and remove unnecessary activities.
Practical Perspective
The greatest reduction in changeover time often comes from preparing work before the machine is stopped.