Quality assurance is the planning and management of processes intended to support consistent, acceptable work.
What this means at your property
Before a repair starts, that may include defining the scope, selecting appropriate materials, identifying responsibilities and deciding how changes are approved. It is different from inspecting a finished result, which is part of quality control.
What can a property owner ask to see?
Request the agreed scope, relevant product information, project contacts and planned review points. Ask how unexpected findings will be documented so quality depends on a clear process rather than an undefined promise.