noun
written outline; written brief; outline report
A document that summarizes the main points of a plan, proposal, or report. Often used in business or academic contexts.
会議の前に、企画の概要書を全員に配布した。
Before the meeting, we distributed a written outline of the project to everyone.
研究の概要書を提出してください。
Please submit a written brief of your research.
要約 is a summary or digest, often shorter and more condensed than a 概要書, which may include structured points.
Compound of 概要 (outline, summary) and 書 (document, writing).