You start off by showing evidence of your planning throughout the
APQP process.
To comply with "...evaluating the efectiveness of existing operations and processes..." you look to various 'control' systems. Tracking of output is one. Tracking scrap is another. Look to measureables your company or facility has established to monitor trends and problems. You are constantly (well, to some degree) evaluating what's happening. This is linked to continuous improvement where you are 'constantly' looking at measureables and operations and products and seeking ways to improve the product and processes.
So - look to your measureables and see what you have. Remember there will be different departments contributing. Manufacturing, of course, will have certain measurables. Materials will probably answer questions about "...storage and buffer inventory levels..."
and such. HR will probably have input.
Let us know what you do.
Any others have some help / ideas for compliance here?