1. Introduction to HCI
CS 565

2. HW #1 and Design Principles
T&T #4, #9
Visibility of user’s options/actions.
Sometimes described as “visibility of system state”
Feedback
Constrain
(making certain errors impossible)
eg: menus vs typing to prevent syntax errors.
(Internal) consistency
Affordance: HOW to do things with an object

3. World’s Worst Feedback Example (Oregon Tax Dept)
Is this spam?

4. T&T #1, #2 Invisible element, Effectively invisible element
<doc cam>

5. Design Activities: Mapped to PRICPE Process
Process activities
Identify needs/requirements
of the user experience.
Develop alternative design ideas
that meet the requirements.
Build prototypes of the designs
to communicate/assess.
Evaluate iteratively
throughout the process.
Pre-dispositions
Research
Insights
Concept
Prototype
Evaluate

6. In-Class Re-Design Activity
You have until <time> to re-design:
Walmart’s on-line grocery. Order from home, food arrives.
Scenario: “Abby” wants to decide if she wants to use this.
Goal: hands-on practice with the re-design process.
How: Use PRICPE process.
Use PAPER.
Pick a population: should help narrow down the 1st P a bit.
Write what you know & what you DON’T KNOW (1st P) on PAPER. (We’ll skip R, but you might get a few Insights from group discussion.)
E: Find some problems for Abby (tools: T&Ts, design principles, Abby).
When ready, SKETCH Concepts/Prototypes on PAPER to fix them.
Why would your solution work for that population?
We’ll look at a few with the doc scanner.