Scenarios are storylines that explore how people might interact with a particular design or context of use. By provoking discussion, they help to develop and evaluate ideas. This method enables concepts to be tested from a human and experiential point of view. Scenarios are imaginative, can be presented through a variety of media including texts, illustrated storyboards or film, and can feature multiple characters to describe product or service interactions. Scenarios vary from real-world narratives grounded in everyday behaviour to more speculative, science fiction ones that can open up discussion around broader social challenges.