A scenario represents a context of use; it is a snapshot of a specific user with a certain task and goal in a particular environment.

As products can be used for many different purposes, choosing an appropriate and representative set of scenarios can illustrate the variety of users, environments, goals and tasks the product should be designed for. This helps to

• Provide a focus for the design team
• Highlight usage outside of a product’s mainstream purpose
• Ensure the design team considers needs beyond their own immediate experience