The four phases of interaction design
-Discover
-Define
-Develop
-Deliver
Who to involve in interaction design
-Stakeholders
-Direct and indirect users
-Developers
-Executives
-Legislators
Degrees of User Involvement
-Member of the design team
-Small group/ Individual activities
-Online contributions from thousands of users
-Participatory design
User involvement after product release
A/B testing
Customer reviews
A/B testing
It draws on user
feedback to choose between alternative designs.
Importance of involving users
-Expectation Management
-Ownership
Expectation management
-It helps set realistic expectations
-It provides timely training
-It provides communication but no hype
Ownership
-It makes the users active stakeholders
-Users are more likely to forgive or accept problems
Four basic activities of interaction design
-Discovering requirements
-Designing alternatives
-Prototyping alternative designs
-Evaluating product and its user experience throughout
How to find out what people need
-Explore the problem space
-Investigate potential users and their activities
-Try out ideas with potential users
Where do alternative designs come from
-Flair and creativity
-Cross Fertalization
-Users can generate different designs
-Prompts to promote thinking
-Seek inspiration
-Different perspectives
How to choose among alternatives
-Technical feasibility
-A/B Testing
-Quality thresholds
-Evaluation with users or peers
Interaction design
It focuses on externally visible and measurable behaviour
A/B testing
-It is an online method to inform choice between alternatives
-It is nontrivial to set appropriate metrics and choose user group sets
Quality threshold
-Different stakeholder groups have different quality thresholds
-Usability and user experience goals lead to relevant criteria
