Where may you use a surveillance approach?

In recent years, a fundamentally different approach to visualizing and managing capacity has emerged. Developed by Eliyahu Goldratt,4 the Theory of Constraints (TOC) is based on the recognition that many products and services proceed through a series of linked processes like the ones we described in Chapters 3 and 4. These process stepscan be contained within a single organization or stretched across multiple organizations (i.E., a supply chain). Each process step has its own capacity level, and in every case there is at least one process step that limits throughput for the entire chain. This process step is referred to as the constraint. Consider Figure 6.7.