NY Ticket Kiosk list of critical incidents to classify via the UAF Explorer tool at http://hemlock.cs.vt.edu/uaftools

These critical incidents are selected from the larger list of critical incidents we found for the NY Ticket Kiosk is an In-Class activity. The critical incident numbers are retained for consistency, so they are no longer a complete sequence here. Please use these same numbers when referring to these critical incidents.

2. Search not implemented, but no indication that it wasn't.

3. Didn't like scrolling to controls at bottom of pages, with too much empty space at the top – layout problem.

4. Expected fly-over help for tabs

5. Three Tenors should have been under Music (not just Arts)

7. Wanted to enter or choose date and venue first and then "Purchase Ticket"

9. Wanted graphic of seat layout but missed seeing the button for that at first; kept missing "View Seats" – should be grouped in layout with seat information

10. Flashing back to splash page due to timeout was surprising and confusing

11. Couldn't select "Three Tenors" by clicking on the text, even though it looked like you could. Had to click on 'icon' on left-hand side.

13. For "Selected seats", no way to distinguish balcony from floor seats since they use the same numbering scheme.

17. "Purchase Tickets" took user to page to select tickets and commit to them, but then there is another button there that says the same thing, "Purchase Tickets", but really means "Pay for Purchase"

20. In View Seats view, should show which of the individual seats is already sold.

21. "invalid" in error message is bad wording.

22. In a couple of places there are messages that say "error" when neither the user nor the system have made an error; it was just a natural occurrence under the given conditions.

23. Overall organization needs complete redesign. User said this order didn't match the way user thinks about the task. User had to go too many places to get the information wanted and was faced with too many variables at each place. Rearrange to guide user through a logical sequence, narrowing it down for the user at each step (e.g., first event, then date, venue, etc.).

25. Missed the cognitive affordance that blue seat sections are clickable to get detailed view of available seats. Thus, left thinking that blue seat section wasn't enough information about which seats are available.

26. Color coding scheme involves issues of color blindness, especially red/blue color blindness. Also, on detailed seat view, purple wasn't noticeable as a color, especially since purple is blue plus red; bad color contrast. Probably should have thicker font (maybe bold would do it). (Treat this one as a cognitive affordance.)

29. Order of Top events doesn't match order of tabs.

30. Even though Music tab isn't activated, if user clicks on it, it then shows the Arts tab highlighted.

36. Inconsistency between Top Event screens (e.g., between Music and Arts) – one has icon at left, one doesn't; they have different fonts.

40. "Next" should say "Next category"