, a four-day affair for Java developers here this week. The 175 attendees exceeded Pearson expectations by 25.
- A mortgage application that requires the user to complete a 12-page application, but mandates "Don't Hit the Back Button" because the site's AJAX implementation breaks that functionif a user realizes he or she made a mistake on a previous page, the user is stuck.
- An e-commerce site warning that a user's credit card will be charged twice if he or she presses the Submit button twice, yet the site just hangs while processing the initial submit click and offers no confirmation in the meantime
- Of course, the 404 (page not found) and 500 (internal server) errors with which every web user is familiar