DEV 6.2 Provide full descriptions for informational images

Recommendations

• Add a longer description:
  • on the same page, near the image (recommended);
  • on a separate page, linked using:
    • a normal text link to the description,
    • longdesc to point to the URL,
    • a '[d]' link placed after the image to point to the URL (use a normal link if possible - the use of [d] links is becoming less common and less well known.)
• If providing a description on a separate page, the resulting linked page should contain all of the following:
  • a clear title
  • an appropriate description of the complex image;
  • a link back to the original page.
• The description should convey the essential information that you are trying to provide by including the image - don't over do it if unnecessary, for example for a graph:
  • 'Trend in ...:
    • describe key aspects and trends if that is what is essential;
  • Individual data points:
    • place in a table or list if the individual data points are important.

Examples