Section 2.5: Information for the Web Developer
When an image serves the role of content on a page, the content expert is likely the best person for creating text equivalents. This spreadsheet is intended to be a tool for associating meaningful ALT text with images as well as additional descriptions (and location) when needed.
Use the parts of the spreadsheet that are helpful to you as the developer or content provider.
Spreadsheet for Text Equivalents for Images