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Navigation can be structured in two types of structure:

• linear
• hierarchical

In the examples shown below, the arrow heads indicate the direction of links between pages.

Linear

This form of navigation was popular in early web development but is rarely used in isolation now.

In a linear structure, users move from one page of the site to another in a sequence.

The example below shows a linear structure for a website designed for a gym:

Hierarchical

In a hierarchical structure, pages are accessed dependent upon their position in the hierarchy.

This example of a hierarchical structure for a gym's website also shows an external link from the 'students' page to the NUS (National Union of Students) website. External links allows users to navigate to other websites.