From the course: Constraint and Bottleneck Management
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Coupled and uncoupled processes
From the course: Constraint and Bottleneck Management
Coupled and uncoupled processes
- Coupled processes are interdependent, i.e. they are dependent upon the availability of each other to be able to run. Whilst uncoupled sequential processes can operate independently of each other. Think about two processes in a production line connected by a conveyor belt. They must both run together or both stop together. They are coupled. You could remove the conveyor belt and store the work in progress inventory somewhere in between, but this inhibits flow, creating material handling work, transportation, and opportunities for loss and damage. Processes can also be coupled due to quality reasons. The Subway sandwich restaurant must immediately fill a sandwich after toasting. It is not allowed to toast a giant batch the night before because customers wouldn't like it. So toasting and filling are effectively coupled processes. If the toaster stops, there is no more filling. If the filling has to stop, we need to stop toasting. Human processes, rather than machine processes, can also…
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