accuracy vs precision

If you want to verify how much your processes are effective you may use both "precision" and "accuracy". Outputs from a specific process are consistent but out of required target, you should adjust your process because it is considered as a relatively high precision but low accuracy. Things are not consistent and out of target, you may need to improve and adjust your process because they are considered as neither precision nor accuracy, which means root cause should be identified and actions should be taken to correct and prevent the problems in your process.

When you want to verify the correctness in your deliverables you should use "accuracy".