Identifiers and Usernames
Ian Glazer · 2020
An identifier is the way an identity management system or other entity refers to a digital identity. The identifier used by the system, however, likely differs from the identifier used directly by the user and will definitely differ from identifiers in another domain. This article reviews the concept of identifiers as they relate primarily to people, both from a user’s perspective and a system’s perspective, and their impact on the systems that use them.