interactionmust

Interaction Must is an approach to user-centered design and interaction engineering that emerged in the early 2000s. The foundation of Interaction Must is the idea that failed interactions are a special kind of interaction that should be considered in the design process, rather than simply treated as errors or exceptions.

The Interaction Must approach was first articulated by Keith Instone, a British designer and researcher. The concept is based on the idea that user behavior is inherently variable and contextual, and that designers should not assume that users will behave in predictable or expected ways.

Instead, Interaction Must advocates for a design approach that takes into account all possible user behaviors, including those that may be deemed incorrect or unusual. This requires designers to think in terms of a wide range of potential interactions, rather than simply designing for the expected norm.

Key principles of Interaction Must include:

* Considering a wide range of possible user behaviors, rather than relying on assumptions about user understanding

* Designing for flexibility and resilience in the face of unexpected user behavior

* Using interaction design as a means of understanding and solving user problems, rather than simply presenting information

The Interaction Must approach has been applied in a variety of fields, including user experience design, human-computer interaction, and service design. Its emphasis on variability and unpredictability has made it a valuable tool for designers working in complex and dynamic environments.