Time for heuristic evaluation!

We have numbered Nielsen’s Heuristics from 1) to 10), added two new Usability Heuristics and did a severity rating on each Problem from (0) to (4) as described in
here

What we came up with are two new heuristics:
11) Fun
12) Learning

Step 1 (Slideshow without user)
7) Always the same pictures -> not flexible/ not efficient (4)
10) & 12) The user might not get it that he has to step in the sensor area (2)
(maybe line on floor or something)

Step 2 (User steps in sensor field -> Menu and shadow appear)
1) Not visible how many people are in the area and who is being tracked (3)
8) Background is too colorful -> grey mask overlay -> buttons and banner overshadow background (2)
10) No help menu (1); tutorial for all would be best if there is none (3)
12) Depending on the click event no examples how to click -> maybe shadow can be used for examples (3)

Step 3 (User clicks on draw -> drawmenu)
3) Buttons overlay the drawing area (2); no undo/redo (4); Only one exit button and no save button, no clear screen option (4)
4) Mickymouse hand instead of shadow (2) -> maybe hand highlighting in previous menus, buttons position is not consistent, bucket is not a color bucket (0)
4-6) Colormenu button might be irritating because you can’t use it like the rest of the tools (1); button looks strange, doesn’t show the current color
4) Buttons position is not consistent (1);
2) bucket is not a color Bucket (0)
5) Exit button gives no feedback and doesn’t ask if it was pressed intentionally (3)
7) Toolbar is not movable (1)
10) No Help menu (3)

Step 4 (Signature field)
1) & 4) Background is fully visible, might irritate the user (2) -> grey mask over background
2) Nobody knows where the signature will appear (1) -> zooming animations or arrows or text sign your picture
3) No “back” button (4)
7) Signature can’t be altered/changed afterwards; picture can’t be edited afterwards (0)

Step 5 (Picture is saved, information about the online gallery are shown)
1-4) OK Button can be helpful (2)

General
9) No error Messages implemented (3) (what errors are imaginable?)
– user position is not correct -> e.g. tell him to come closer or step back
– user trys to vote a second time -> text: only one vote per session
– to many users in the sensor area -> text: only one user in the sensor area
10) No tutorial or help function (3)

Slideshow
2) Pictures can’t be slided intuitively by making swoosh gestures (1);
there is nowhere shown how many pictures are stored (2); text: 12/20
3) Can’t take back a rating (if misrated or sth.) (1);
everybody might think its a touchscreen (1)
6) Not shown which direction is high ranking and what is low rating (1)

###################################
######### resulting changes #########
###################################
– Animated signature field
– Mask inactive areas
– Show tutorial video
– Dynamic visualization of rating system
– Consistent menu placement
– Insert missing buttons
– Restrict drawing area
– Consistent design for the color menu
– Add confirmation dialog
– Show picture count in slideshow

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