Usability Testing the beginning of the experience

Haobam Martin –

Lead Web Designer, ANZ UX Design

Usability…

What?Usability refers to the extent to which a product can be used by specified users to achieve specified goals with effectiveness, efficiency and satisfaction in a specified context of user. - ISO 9241-11

Usability…

What?• Ease of learning

• Efficiency of use

• Memorability

• Error frequency and severity

• Subjective satisfaction

Usability…

Why?• Users are impatient

• More features the better

• Even the best designer get it wrong

• Competitors have it, lets have it

• Complex online activities in everyday life

• Usability is next to profitability

VisualsInteractionTechniques

User’s Model

Maslow’s

Hierarchy of Needs

Self Actualization

Esteem

Love/Belonging

Safety

Physiological

If you want to make a revolution, you have to raise lowest common denominator

Steve Jobs, Co-founder + CEO Apple

Usability…

How?

• Summative test

• Formative test

When the cook tastes the soup, that’s formative; when the guests taste the soup, that’s summative

Robert Stakes, University of Illinois

Usability…

How?

• Subjective

• Objective

• Qualitative

• Quantitative

Plan the test Collect data Analyse Conclusion Iterate

But How?

• Early Prototype

• Card Sort

• Paper Prototype

• Wire framing

• Contextual Interviews

• Open card sort • Closed card sort

But How?

• User Analysis

• Heuristics Evaluation

• Surveys Online

Observer Participants

But How?

• User Analysis

• Heuristics Evaluation

• Surveys Online

How does usability fit?

• On Visual Design

• On layout

• On terminology

• On Messaging

• On Navigation

• On Task Flow

• On Task Support

How does usability fit?

Questions?