The usability and user experience goalsprovidet heinteraction designer with high-level goals for the interactivep roduct. Thenextissueis how to design a product that satisfies these goals. This design process is usually guided by design principles.
These principles can be used both to avoid problems when creating a design, and to understand problems within an existing design. If you have a website, mobile telephone or some other product you struggle to use, these design principles may well help to explain why.