Once written, components usually require revision as structure develops. The writer decides on possible reading orders for all components. Building the possible orders into the hypertext with links . Linking marks a critical difference between authoring a unilinear text and building a hypertext with multiple reading orders. Linking cannot be ignored.
Links give hypertexts their flex, enabling readers to follow their preferred paths through articles.
And yet, additive construction over time may give depth and breadth to hypertext structures.