Previous  Next          Contents  Index  Navigation  Glossary  Library

Operation Yields Calculations

The system will calculate the cumulative yield, reverse cumulative yield and net planning percent for each process and line operation. This information is used in mixed model map calculations.

Cumulative Yield:

The system calculates the cumulative yield by taking the product of the yields at each operation. Only operations on the primary path of the routing network are considered.

Operation Yield (User Entered) Cumulative Yield
10 1 1
20 .90 1 * .90
30 .95 1 * .90 * .95
40 .98 1 * .90 * .95 * .98

Reverse Cumulative Yield:

The system calculates the reverse cumulative yield by taking the product of the yields at each operation starting with the last operation. Only operations on the primary path of the routing network are considered.

Operation Yield (User Entered) Cumulative Yield
10 1 1 * .90 * .95 * .98
20 .90 .90 * .95 * 98
30 .95 .95 * .98
40 .98 .98

Net Planning Percent:

The system calculates the net planning percent by taking the product of the network percentages at each operation along the primary path and rework loops in the routing network.

Operation Network Percent Net Planning Percent
10 100 100
20 80 (100)(80) + (5)(100)(80)
30 100 (100)(80)(100) + (5)(100)(80)(100)
40 100 (100)(80)(100)(100) + (5)(100)(80)(100)(100)

See Also

Calculating Operation Yields

Mixed Model Map Overview

Entering Mixed Model Map Parameters

         Previous  Next          Contents  Index  Navigation  Glossary  Library