Run-time Layer

• describes mechanisms supporting the user’s interaction with the hypertext

Storage Layer

• is the main focus of the Dexter Hypertext Model
• models the basic node - link structure which is composed of data containing components that are arranged in a hierarchy

With-in Component Layer

• is concerned with the contents that exist within the components themselves, and is not specifically defined in the model to allow a wide variety of media (text, audio, video, etc.) to be included.

Presentation Specifications

• is a mechanism that enables the storage of information concerning how to display a component to the user
• allow the component to be displayed to the user based not only on the hypertext tool (e.g. the browser) that is displaying the hypertext, but also as an attribute of the component itself
• also allows a component to be displayed a certain way depending on the link used to get there

Anchoring

• is a mechanism that enables links to locations within a component itself, not just between components
• If a complete document is a component, then anchoring allows links to certain characters in that document (e.g. sub-sections of the document.