Here’s an initial rough draft of subject guidelines. More to come; feedback welcome.
Subject Element Instructions for Art
Element Description: The topic of the content of the resource.
Guidelines for Creation of Content: This element describes what is depicted in an image or what the image is about. It is recommended that a value from a controlled vocabulary be used.
LCS Library of Congress Subject Headings
LCTGM Library of Congress Thesaurus for Graphic Materials
AAT Art and Architecture Thesaurus
Examples: to come
Notes: Include both general and specific terms.