common mistakes in web development and avoiding them jorge plano
TRANSCRIPT
Common Mistakes in Web Development and Avoiding Them
Jorge Plano
Low quality or non-existent ALT tags on images
alternative text must transmit the same information as the graphic
this is not the same that a description of the graphic
Navigation mechanisms
confusing or inconsistent disorienting the user
Pop up windows
if the user can not see: What happened? if mental disabilities: What is this?
Incorrect denomination of links
The most famous link:
Clic here
To help navigation some assistive technologies create an auxiliary window with a list of links:Click hereClick hereClick hereClick hereClick hereClick hereClick hereClick here
Decorative images that don't have an empty alternative text attribute
no text at all or a non empty text
Videos or animations that
are non captioned for users that can not hear
have no description of the action for users that can not see
Flash links inside Flash inaccessibles by
keyboard animations without textual alternative But ... there are ways to build accessible Flash! www.adobe.com/accessibility
Illegible text
text size too small and frozen low contrast between text and background
Inaccessible links
links that only can be reached or activated by mouse
Some cues for success
Structure, structure, structure
Ask yourself:
When you write a text, how do you put a title or subtitle?1) Enlarge the text to a size level that you like2) Select the style of the title level that you
want
Graphically minded vs. information minded
Do not design thinking of the web as a paper medium
Behinds: there is an structure behind a web page, but, there is nothing behind paper (only dead trees)
the designer rules vs. the web page as a collaborative creation of the designer and the user
Good strategy:
1) develop content with structure and check that it gives the right information and interaction
2) add styles to position content, to get an attractive looking and to enhance interactions
3) add programmatic elements to enhance the user experience
