Challenges

Providing non-Ajax functionality

Ensuring that content is available to users (and user agents) without JavaScript (or ActiveX).

Hijax solves this problem.

The same-site restriction

Use your own server as a proxy to process web services.

Example: Yahoo! News Search (JS)

Wireframing

It can be hard.

Live with it.

Bookmarking

If a page should be bookmarkable, maybe you shouldn't be using Ajax.

You could provide a "bookmark this page" link, updating its href attribute every time you perform an Ajax action.

The back button

As a rule of thumb: don't change too much of the current page.

The back button problem isn't new:

• Frames: browsers were updated to adapt to the situation.
• Flash: designers tried to eliminate the browser controls.

User expectations

• Don't try to be Xerox PARC.
• Do indicate that something is happening and where.
• Animation, yellow fade, etc.

Examples: Contact form (JS), Shopping cart (JS), Yahoo! News Search (JS),

Keep It Simple, Stupid

It's the secret to good cookery.

The more complicated you make something, the greater chance there is that something will go wrong.

When you use Ajax, try to keep the amount of client-side work to a minimum.

It's just a tool

Ajax can enhance your website, but your website shouldn't rely on Ajax.

The biggest challenges to making a great website aren't technological.

It's all about the user experience.

Next

Ajax and accessibility.