Add section on Accessibility considerations.

index.html

@@ -1260,13 +1260,13 @@ <h2>Refreshing</h2>
         <p>
 The issuer may include the refresh service as an element inside the <a>verifiable
 credential</a> if it is intended for either the verifier or the holder or both, or
-inside the <a>verifiable presentation</a> if it is intended for the holder only. 
+inside the <a>verifiable presentation</a> if it is intended for the holder only.
         </p>
         <p>
 Including the refresh reference in the presentation enables the holder to refresh the
 credential details before creating a presentation to share with a verifier, while including
 the refresh reference in the <a>verifiable credential</a> enables the both the holder and
-the verifier to perform future updates of the credential. 
+the verifier to perform future updates of the credential.
         </p>
        <p>
 The expression of a refresh service may be performed via the following
@@ -2321,6 +2321,39 @@ <h3>Fitness for Purpose</h3>
       </section>
     </section>
 
+    <section>
+      <h2>Accessibility Considerations</h2>
+
+      <em>This section is non-normative.</em>
+
+      <p>
+This section details the general accessibility considerations that should be
+taken into account when utilizing this data model.
+      </p>
+
+      <section>
+        <h3>Data First Approaches</h3>
+        <p>
+Many physical credentials in use today, such as government identification
+cards, have poor accessibility characteristics. Some of these poor
+characteristics include, but are not limited to, small print,
+reliance on small, high resolution images, and no affordances for people with
+vision disabilities.
+        </p>
+        <p>
+When utilizing this data model to create verifiable credentials, it is
+suggested that data model designers use a "data first" approach. For example,
+given the choice of using data or a graphical image to depict a credential,
+a designer should choose to express every element of the image,
+such as the name of an institution or the professional credential, in a
+machine readable way rather than solely relying on the image to convey this
+information. This approach is preferred because a "data first" approach
+provides the foundational elements of building different interfaces for
+people with disabilities.
+        </p>
+      </section>
+    </section>
+
     <section>
       <h2>Privacy Considerations</h2>