NOT.5:4.1 - Choose what must remain possible

Name the source notation, target notation and intended reader operation. Specify the source expressions admitted for this use and the context required to interpret them. A drawing may use position as meaning or only as layout; a spoken sequence may rely on a separately maintained beat. Carry the context that the question uses.

Decide what the recipient must return: a value, a construction, an explanation, a reconstructed expression or a proposed change. These demands can require different information. An answer expressed in target units or names needs a way back to the source question.

If a source choice is unresolved, preserve the alternatives or the unresolved status that matters to the question. A default introduced by the translation is an added decision. Accept it only when making that decision is part of the intended work and its basis is available.