DIAGRAM Center

Last updated: October 17, 2012

Notes

• This matrix summarizes image-description support in DTB authoring systems.  The columns labeled "Include short image descriptions" and "Include long image descriptions" indicate whether or not the system allows authors to add these description types to images.  If the system can accommodate descriptions, the method is indicated in the appropriate column (e.g., "alt" for a short description or "longdesc" for a long description).  The column labeled "Include or describe SVG" indicates whether the system allows authors to integrate Scalable Vector Graphics as well as convey SVG descriptions.
• A field containing a dash does not necessarily indicate that a feature is unsupported, but that more research is required to make a determination.
• For more information about metadata and image descriptions, read DIAGRAM's Potential Use of Image Description Metadata for Accessibility and the follow-up addendum, Alternatives, Content Model, New Tools, Dependencies and Updates.
• Read the results of the 2012 DIAGRAM Reading Technology Survey to learn how people who are blind and visually impaired obtain and access reading material.