The Hot Spot/image map question type is inaccessible to screen reader users (even sighted ones - it is not possible to add any text alternative to any portion of the image). It is also impossible for keyboard-only users to navigate and answer.
Ideally, the following fixes should be made:
- Allow (possibly require) instructor to add alternative text for each region in the image map.
- Allow students to navigate and select answers with a keyboard.
If the above are not possible to add, the following warnings are needed for users:
- Warning to instructors on the authoring screen that alternative questions may need to be created for students who use a keyboard or screen reader. (It may be helpful to add such a message even if the above fixes can be made).
- Warning to students that this question type must be answered with a mouse/pointer device and screen reader users should skip it.