When this guide is useful
A study relies on estimated quantities because complete plans are unavailable.
The distinction that matters
Record the source, measurement method and limitations of each material quantity. An estimate should not be presented as an exact observed measurement.
A worked situation to investigate
A remote study uses photographs and partial drawings to estimate components in several areas that have not been measured.
The example is illustrative. Begin with the underlying event and its source documents, then separate missing facts from disagreements about their treatment. Work through the checks below in the order that matches your file, rather than treating a completed checklist as a tax conclusion.
Build a traceable handoff
Identify the affected person, entity or property and the relevant period. Keep original evidence, corrections and the reviewer's written conclusion connected. If the facts change after review, preserve the earlier version and ask whether the change affects implementation.