Per WCAG 2.0, non-text content should have a text-based alternative accessible to screen readers. Suitcase supports this standard by providing content creators with an "alternative text" (often abbreviated as alt text) field for adding image descriptions. Alt text should not be too long so that screen reader users are not inconvenienced.
Luggage is a platform for creating websites, targeted at academic websites for departments and researchers.
The platform is built on Drupal and consists of features that come with configuration. For example, the People feature contains a prebuilt content type appropriate for displaying a group of people divided into subgroups of your own choosing (faculty, staff, etc.) along with a view. Here's an example.