How Much Precision Does It Require?

Briefly compare what your team has learned about the chosen task. Name the method that creates the most difficulty and the evidence you still need.

1. What task are you testing?
2. Which input method have you tested so far?
3. What is one operability finding you can defend?

How precise does the interface expect you to be? Try each interaction before analyzing it. Pay attention to what the interface assumes about how accurately, quickly, or consistently you can operate a pointer.

Very small or tightly packed controls can be difficult for users with limited precision. Target size is part of whether a pointer or touch interaction can be completed reliably.

WCAG 2.2 Target Size (Minimum) generally calls for a target of at least 24 by 24 CSS pixels, or sufficient spacing or another applicable exception. Use the criterion as a high-level reference, not as a target-size calculation exercise.

Look for drag and drop, draggable sliders, reorderable cards, and draggable carousels.

If an action requires dragging, provide another way to perform the same action with a simple pointer interaction unless dragging is essential.

• Move up and move down buttons.
• Entering a slider value directly.
• Previous and next controls.
• Selecting an item and then selecting its destination.

Briefly consider interactions that depend on swiping, pinching, drawing a path, or using a multi-finger gesture.

The goal is not to eliminate mice, touch, dragging, or gestures. The goal is to avoid making one interaction method the only way to succeed.

Return to Challenge 04. Reconsider your assigned experience through these additional lenses, then finish the team package.