A project team is writing a new customized point of sale software. The software needs to calculate sales tax 100% of the time on all taxable items of a receipt. This requirement should be documented i

A quality control process outlines the steps for monitoring project results and deliverables to determine if they comply with quality standards, rather than defining the specific measurable standard itself.

A quality metric is a quantitative measure used to assess the quality of a product or process, providing a standard against which actual performance can be evaluated. The requirement that the software calculates sales tax '100% of the time on all taxable items' is a precise, measurable target that directly serves as a metric for the software's functional quality.

A quality assurance process focuses on preventing defects and ensuring that the project adheres to quality standards throughout its lifecycle, which is different from specifying a particular measurable requirement.

A quality checklist is a tool to ensure that specific steps or items are completed, but it does not define the measurable performance requirement for a function like sales tax calculation accuracy.