Sign-off
Sign-off is the recorded acceptance, by a person with authority to give it, that a piece of work, an inspection or a defect’s rectification is complete and to the required standard. It is a different claim from the trade’s own statement that the work is finished.
Used the same way everywhere. What differs is the form: a signature on a paper ITP, a countersignature on a handover certificate, or a recorded status in a system.
Sign-off goes wrong when the same person does and accepts the work, when it is signed in the office a week later, or when it is a tick with no name behind it. The question a dispute asks is who accepted this, when, and what were they looking at.
How IssuesId holds it
In IssuesId sign-off is a status, not a signature. On a defect’s assignment it is a separate step from marking the work complete: requested, then signed off by a configured approver with a name, a timestamp and an optional note, and revoking it stays in the history. Checklists carry the name, role and time of each answer rather than a drawn signature.
Two questions people ask
Definitions describe common usage and the usual shape of standard-form contracts. Your contract and your jurisdiction’s building law set the terms that apply to your job. The whole list is at the glossary.