Yield

One of the key improvement dimension, alongside variation, cycle time, process design and product design.  The degree to which the input factors are utilised effectively in the output of the process.
Yield is the percentage of a process that is free of defects.

OR

Yield is defined as a percentage of met commitments (total of defect free events) over the total number of opportunities.


First Time Yield - FTY
Rolled Throughput Yield - RTY