accuracy: ac·cu·ra·cy – the degree to which the result of a measurement, calculation, or specification conforms to the correct value or a standard. – Oxford Languages
Information accuracy, however, is a term I can live with, as it is a function of the correctness of input data.
Accuracy is a very common term used in describing the primary attribute required in construction cost estimates.
The use of the term accuracy in concert with a construction cost estimate is questionable is questionable at best but is sheer lunacy if the standard is the final construction cost!
Construction cost management, inclusive of repair, renovation, maintenance, etc., will continue to be elusive until the is a fundamental change in construction planning, procurement, and project delivery methods and processes, including the cost estimating approach.
The ONLY via method of estimating a project is to use a current, locally researched granular cost database with appropriate means and methods. That is a known standard/datum.