Time, money and delivery

WordMeaning
Work logTime spent on an issue, at the hourly rate in effect when it was logged.
QuoteA priced offer for a client, built from issues and their estimates. Frozen once sent.
AcceptanceA person's approval of a document or a release revision. It binds to the exact text it was given on.
ReleaseA frozen set of documentation published in numbered revisions.
RevisionOne version of a release, such as Rev. 2. Once published it never changes; changes go into the next revision.
SummaryA short text on every document and chapter saying what it covers, so a reader or an agent can judge it without opening it.