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Digital identity refers to the sets of data, behaviors, or other factors, such as physical authentication or biological differentiators, that are uniquely linked to one specific individual person, group of persons, nonhuman digital entity, or class of nonhuman digital entities and can be used as proof of the real-world identity of that specific person, group, entity, or class of entities within digital systems. Checking a digital identity requires an authentication process that confirms that the entity claiming to own a specific digital identity and its associated rights can present the required differentiators with sufficient accuracy and reliability as are acceptable to the administrators of a digital system to permit all rights assigned or owned by the identity in question. Digital identity is essential to educational technology as it permits the educator to assign appropriate learning materials to each student and assess progress based on that student’s individual academic advancement. This entry first defines identity as a construct and discusses its meaning in the digital world. It then discusses issues related to the difficulty in verifying digital identity, such as the ability to determine the source of work found online, as well as the use of false or stolen digital identities.

What Is Identity?

Before considering identity in a digital context, it is important to understand identity outside of digital environments. Identity is a construct, or set of constructs, that allows each individual to have a separate existence, where that person can own objects, have relationships to other persons, and assign meaning to oneself and to one’s relationships to other persons, entities, and attributes of one’s environment. Identity is one of the key elements that provides a stable point of reference for persons to assign meaning to their lives. Persons who are unable to form a consistent identity or to identify themselves in a consistent manner are unable to function within modern society, its legal system, or its traditional educational environments.

Identity in the Digital World

When considering digital environments and comparing them to traditional nondigital environments, the most distinct differences are the increase in the speed of communication and the volume of information presented to entities (human or software) in the digital world.

More fundamentally the very structures that give reference and meaning to support digital environments, for example e-mail addresses, user identification names, and even the websites themselves, often are of shortlived duration.

The Importance of Digital Identity

The transient nature of structures in the digital environment creates a constant state of flux and uncertainty that is quite new to human experience. In previous generations, the basic structures within an environment changed relatively slowly. Buildings and physical structures provided a source of fixed reference for an individual’s life. Even identities were often expressed as “son of” (e.g., Ericks son or bin) or based on an occupation (Archer, Cooper, or Smith).

These basic environmental structures often add substantially to individuals’ ability to understand not only the world around them but also to understand themselves and their role in existence. When we change the nature of structure in the environment, we fundamentally alter the way in which individuals understands themselves.

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