Hypertext

A way of organising and presenting textual content in a non-linear manner by breaking it into fragments and describing the relationships between them. A book has chapters in a fixed order, but hypertext allows content to be navigated in multiple paths through links between fragments. HTML (HyperText Markup Language) is the most widespread hypertext notation, using a book metaphor of pages organised under headings, with hyperlinks providing navigation between pages. The concept is formalised in the Dexter Model of Hypertext, which describes components, links, anchors, and presentation specifications as the building blocks of any hypertext system.