For anything other than the most trivial of screens, it can be helpful to sketch out an example of the data to be shown on each of your display category screens.
For each display category that you have identified, sketch out an example of the screen with some realistic data laid out appropriately, giving particular attention to:
- whether any expandable sub-screens are required to display further details on any data; and indeed whether the sub-screens themselves require further sub-screens (possibly creating separate sketches if warranted by the complexity of the sub-screens);
- any data which is only to be displayed if a particular condition is met (and possibly create a separate sketch for how the screen should look if this condition is not met); and/or
- any non-standard layout such as bold characters, total lines, etc.