Understandable covers the importance of conveying information in a clear and concise way, such that it is inclusive of the widest audience possible. The need for consistency in webpage structure and user interface interactions is also addressed.
Webpage content should be readable and understandable to the broadest audience possible, this can be achieved by applying careful consideration to phrasing, use of terminology, and punctuation.
Use the interactive panel below to simulate how changes in the complexity and punctuation of content can affect the readability of content.
Webpages should appear and operate in predictable and consistent ways. It can be confusing when elements break common norms or behave inconsistently.
Use the interactive panel below to simulate an unpredictable interface element. Observe how even simple inconsistencies in colour can cause confusion.