Textbook of Usability

Wayfinding is the process of navigating through an environment to reach a destination. The term, coined by Kevin Lynch, encompasses both the cognitive act of route planning and the environmental features that support it.

Wayfinding relies on spatial cognition — the mental ability to form and use an internal representation of the environment. Edward Tolman's "cognitive map" concept (1948) describes this representation as an internal model that supports navigation even along novel routes. Cognitive maps are constructed from:

• Landmarks (distinctive features)
• Routes (sequences of turns and landmarks)
• Survey knowledge (a bird's-eye view of the layout)

People typically develop these in sequence: landmarks first, then routes connecting landmarks, then survey-level maps. Design that supports all three levels serves users at every stage of familiarity.

Wayfinding design encompasses:

• Signage placed at decision points with visible, consistent symbols
• You-Are-Here maps aligned with the viewer's current orientation
• Landmarks (Lynch's five elements) enriching otherwise uniform spaces
• Colour coding by district to help users orient quickly
• Clear thresholds marking the transition between zones

In software, wayfinding corresponds to navigation design: answering the questions "Where am I?", "Where can I go?", and "How do I get there?" Breadcrumbs, navigation menus, and consistent layouts all serve the same cognitive goal as signs and landmarks in physical environments.