A Study on the compatibilityof Ubiquitious Learning at University Level
Ebner
Stickel
Scerbakov
Holzinger
...extending e-Learning
modular lectures
collaborative functions
10000 users
...with mobile devices

u-Learning = 
u-Behavior
u-Service
u-Environment
u-Contents
u-Interface

Ubiquitious 
Learning?
any time, any place is reality now it's about behaviour and interfaces
we have services and environment...
....special mobile content
You can have the best service, environment and content...usage behavior depends on usable interfaces.
Design for mobile
lessons learned
...a challenge
variable small screen size
limited system ressources
variable interaction mechanisms

-> device profiles
-> but you can't style the interface for every device
some general guidelines
use a simple text based interface
use few and small images
allow dynamic resizing pages
avoid scrolling
Mobile Web 2009 = Desktop Web 1998
(Nielsen, http://www.useit.com/alertbox/mobile-usability.html)
-> see http://www.w3.org/TR/mobile-bp/
metaphoric guidelines
Fat-Man-Walking-No-Narrow-Path
Free-Bird-On-The-Fly
One-handed-bandit-on-the-run
for evaluators and developers
description of user and system on multiple levels 
Fat-Man-Walking-No-Narrow-Path
...unless he get's slim
issues occuring from:
screen resolution
system ressources
file sizes
input mechanisms etc.

design guidelines:
use a simple text based interface
use few and small images
allow dynamic resizing pages
avoid scrolling
lean code
label files with type and size etc.
Free-Bird-On-The-Fly
issues occuring from: 
instable connections
limited energy ressources


design guidelines:
use caching if possible
don't rely on cookies or scripts
avoid periodic reloads
avoid automatic redirects
avoid unnecessary animations
is always moving and doesn't stick in one place
One-handed-bandit-on-the-run
issues occuring from:
limited input possiblities
limited cognitive ressources

design guidelines:
reduce text and character entry 
support input mechanisms of the device
use a flat site structure
support navigation
reduce the content to the max
support goal directed actions
has just one hand and one thing in his mind
the study - 
methods & materials
17 novice users
iPod touch vs. Nokia N95
Thinking aloud with 6 typical tasks 
user interview
User Experience Questionnaire (UEQ)
the study - 
results
UX shows high perspicuity and low novelty values
most severe issues violate design rules
fixed width resulted in ...
...zooming and scrolling
"first-letter-big" function of the iPhone
+
no caching of logins
+
case sensitive logins
= frustrating logins
bad styled list of downloads...
Support the cognitive performance of your users by reducing the load!
...require more cognitive ressources
Thank you
for your attention
download presentation at:
http://prezi.com/129784/

thanks to banksy for the pics
http://www.banksy.co.uk/
Metaphors like Fat-Man, Free-Bird or One-Arm-Bandit
merge a couple of design rules
allow a holistic view on development and evaluation