DA0-002 Visualization and Reporting Practice Question
A dashboard should be designed so that the most important metric is prominently displayed. This is an example of which design principle?
⚠ Common exam trap
In the data-plus exam, visual hierarchy is often contrasted with data-ink ratio. Candidates may confuse 'making a metric prominent' with 'reducing non-data ink,' but the former is about emphasis while the latter is about eliminating visual clutter.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Visual hierarchy
Visual hierarchy is the design principle that dictates arranging elements to guide the viewer's eye to the most important information first. By making the key metric the most prominent element (e.g., larger, bolder, or top-left), the dashboard ensures immediate comprehension of the primary data point, which is critical for operational decision-making.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Data-ink ratio
Why it's wrong here
Data-ink ratio concerns removing redundant non-data pixels to reduce clutter; it does not dictate which metric occupies the most prominent position. It is tempting because both address visual clarity, but maximising data-ink suits decluttering charts, whereas highlighting a primary metric requires deliberate positional and size emphasis.
- ✗
Consistent color coding
Why it's wrong here
Consistent colour coding assigns stable meanings to hues across visuals; it does not establish visual hierarchy or draw attention to a primary metric. It is tempting because colour strongly guides attention, but it suits distinguishing categories or series, whereas prominence of one metric requires deliberate layout emphasis.
- ✗
Appropriate precision
Why it's wrong here
Appropriate precision governs how many decimal places or significant figures a value displays; it does not control placement or visual weight. It is tempting because both refine dashboard readability, but precision suits avoiding false accuracy in numeric labels, whereas prominence requires deliberate layout hierarchy.
- ✓
Visual hierarchy
Why this is correct
Visual hierarchy arranges size, colour, position and contrast so the eye lands first on the most important metric. This satisfies the stem's requirement that the key metric be prominently displayed rather than buried among secondary visuals.
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