I never knew a website could hurt someone

Accessibility is not just about blind people using screen users

Assistive technologies come in different versions. Some may be hardware some may be software.

• Keyboard overlays for low-vision users.
• trackball for people with motor control limitations
• Magnifier for low-vision
• Language cards

The ‘user’ is a person

They existed before their session on your site and will continue to exist after.

Some disabilities are invisible

“…you just pray that they believe that the tears in your swollen eyes are real”

Pains effects aren’t just physical

National Pain Foundation - talk aloud protocol - they ‘bitched’ the whole time - talking about their problems - how hard it was to live with their disease - medication or pain] - no completed the task the site was utter shit. - your design can literally hurt them.

Attempting to interact with a poorly designed and inaccessible website can actually hurt your users

• lethargy
• weakness

• mood disorders

THE USER WANT TO KNOW

• where am I?
• What can i do here?
• How do i do that?

The principle of Least Astonishment

the results of performing some operations should be obvious, consistent and predictable from looking at the code.

POUR

• Perceivable
• Operable
• Understandable
• Robust

Obvious always wins - @lukew

• your way-finding painfully obvious.
• Let users recover from their errors

What is this thing. What does it do

• What are the goals of the user?
• What are the goals of the business
• How would this ui element contribute to both goals

• How is this UI element better for the user than the competing options?

• How does it operate via the mouse
• how does this control operate via keyboard
• somethings about focus

Good design is the convergance between creativity and capability