Placement of content blocks must be consistent throughout an application.
Benefits of conformance
- Reduced cognitive load.
Risks of non-conformance
- Frustration caused by inconsistency.
Place content blocks in consistent positions across different screens within an application where the screens share this functionality.
For example, if on one screen the error summary block comes before the form title, then the same order should be used on all screens that contain a form title and an error summary block.
Correct implementation: The summary block comes before the form title on both screens.
Incorrect implementation: The summary block comes before the form title on the first screen but comes after the form title on the second screen.