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    • Usability testing evaluates how easy and effective a product is for end users.
    • Helps designers understand:
      • Can users complete tasks efficiently?
      • Is the interface intuitive?
    • Essential for identifying design flaws early.

Slide 2: What is Usability Testing?

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Avoid designer bias and assumptions

Improve user satisfaction and performance

Save development time and costs

Ensure the system meets user needs

Slide 3: Why Do We Evaluate Interfaces?

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Formative Testing: During development; small groups; exploratory

Summative Testing: After product completion; larger groups; measures success

Slide 4: Types of Usability Testing

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Slide 5: Common Evaluation Methods

Observation (Think-Aloud)

Surveys

Focus Groups

Interviews

Choose one for the tutorial task (we suggest Observation)

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Now: Plan a usability test

Created wireframes

You have:

Defined personas and scenarios

Designing a Food Ordering & Delivery App

Conducted user research

Slide 6: Tutorial Scenario Overview

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What to learn:

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    • Task efficiency (e.g., ordering food, tracking delivery)
    • Interface clarity and user satisfaction

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Define specific goals for testing

Slide 7: Step 1: Define Test Objectives

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    • Target audience: casual diners, 18-45
    • Diverse demographic:
      • Age, gender, experience, digital literacy
    • Recruit 4-5 representative users

Slide 8: Step 2: Select Participants

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Wireframes or prototypes

Task scripts

Consent forms

Observation notes template or survey forms

Slide 9: Step 3: Prepare Test Materials

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    • Use Observation + Think Aloud
    • Ask users to:
      1. Place a customized pizza order
      2. Track an order delivery
    • Record sessions and note behaviors

Slide 10: Step 4: Conduct Usability Test

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Quantitative:

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    • Task completion time, error rate

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Qualitative:

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    • Feedback, confusion points

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Use affinity diagrams to cluster issues

Slide 11: Step 5: Analyze & Interpret Data

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    • Summarize findings
    • Prioritize issues (Critical / Moderate / Minor)
    • Propose actionable improvements:
      • Navigation
      • Button visibility
      • Label clarity

Slide 12: Step 6: Report & Iterate

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Slide 13: Continuous Improvement

Keep testing and refining

Monitor user feedback even post-launch

Usability testing is iterative

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Follow the 6-step plan template

Use clear, measurable tasks

Reflect on real user needs and behaviors

Don't skip analysis and iteration plans

Slide 14: Tips for Completing Tutorial

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Any questions about the tutorial task?

Let’s review your scenarios and wireframes if needed!

Slide 15: Questions & Clarifications