preoutline
/ˈpriˌaʊtlaɪn/Definitions
1. noun
A preliminary outline, especially one made before a detailed outline or plan is drawn up.
“The professor asked the students to create a preoutline for their research paper before they began writing.”
2. verb
To create or make a preliminary outline for something.
“The team spent hours preoutlining their marketing strategy before presenting it to the client.”