Stage Gate Capital Allocation Principles for Manufacturing Expansion
Stage gate capital allocation protects liquid reserves by conditioning manufacturing expansion funds on verified operational readiness and constraint removal.
Work in Progress Queues
Meaning
Intermediate stages of inventory that sit between active processing steps on a manufacturing floor. Work in progress queues act as dampeners that allow one part of the line to continue moving if a preceding or following station experiences a temporary halt. They represent the capital currently locked in the production cycle that has not yet become a finished, saleable good.
Cycle Timing
Lengthy wait times for material at a station indicate that the work in progress queues are too large or poorly managed. Excessive accumulation increases the total lead time from raw material to finished product. This delay raises the carrying cost of inventory and hides quality issues that might not be discovered until the material reaches the end of the line.
Bottleneck Indicator
Build up of material at a specific point signals that the subsequent machine is the constraint for the entire system. Monitoring work in progress queues allows a manager to see where flow is obstructed without looking at a computer screen. If the piles grow daily, the capacity of the downstream process is clearly insufficient for the current demand.
Financial Impact
Reducing the size of these buffers improves the cash flow of the operation by turning materials into revenue faster.