Among the cards you carry with you daily, you are likely to have credit cards, loyalty cards, insurance and library cards, and more. Each one is associated by your name or other identifier to a member profile in a database. Besides your unique identifier, each profile of yours also records your level or role of membership in a group, your address, possibly some value or role that you represent to the respective group, among other data. A profile is a unique member record that describes how you relate to other members and to the group itself. You are a resource, and the profile is your resource description. And like a profile, a topicref is also a resource description. What kind of resource? Well, don’t let the name fool you. Topicref is DITA’s most versatile element!