Which of the following is a measurable goal for a UI project?

• A. Increase task success rate by 20%
• B. Improve voiceover quality
• C. Expand color palette
• D. Add a new logo

Answer: (A)

Measurable goals use concrete numbers to show whether the UI changes actually help users complete tasks. The option that states increasing the task success rate by 20% provides a clear target, a baseline you can measure, and a timeframe to assess progress, making it testable and trackable throughout the project. Other options describe qualitative improvements or deliverables rather than outcomes you can quantify—voiceover quality is subjective, expanding the color palette is a design scope change, and adding a new logo is simply a deliverable, not a user performance metric. To keep goals measurable, pair a metric with a current baseline and a target date, and measure with usability testing or analytics (for example, raise task completion success from the current level to 20% higher within the next sprint).