While documenting solution architectures I use frameworks such as the following to provide structure for the Architecture Description document (see below):
However, I've also seen people use Enterprise Architecture concepts to structure their Architecture Descriptions, using document headings such as TOGAF's:
Question: Are Enterprise Architecture frameworks suitable for documenting Solution Architectures?
Definition:
Architecture Description (AD): A collection of products to document an architecture (source: Wikipedia).
The OpenGroup have created ArchiMate as a tool for architecture modeling. It's designed to be in line with TOGAF, so a description of a solution architecture using ArchiMate would be full of those TOGAF terms.