EXD.4:1 - Problem frame

Use this pattern while explaining with another participant when their contribution can change the question, the account, the help needed or the next useful inference. A teacher, specialist, adviser or assisting agent may offer an explanation; either participant may supply a relevant relation or correction.

Begin with one contribution that answers the current question at a manageable grain. Leave room for the recipient’s next contribution and use it to choose a continuation, repair, source return or close. The first useful result may be a recovered relation, a revised question, a located disagreement or a specific unresolved subject input.

A clear lookup answered sufficiently by a short message can end there. Select a diagnostic exchange when its different possible answers would change the next explanation.