20 May, 2010 Mobile User Experience – Intro Andreas Jakl Senior Technical Consultant Forum Nokia v2.0a
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20 May, 2010
Mobile User Experience – Intro
Andreas JaklSenior Technical ConsultantForum Nokia
v2.0a
Thinking Mobile
20.05.2010 2
© 2010 Nokia
Mobile Requirements• Limited resources
– CPU: 220 MHz – 1 GHz, 64-256 MB Ram
• No hard disc
– Therefore no virtual (= “unlimited”) memory
• Power management
– Battery life, data safety in case of power loss is an issue
• Compact
– Not much room for UI and the application itself
– Reuse of common components important
• Reliability
– Phone functionality always highest priority
– “Always on”
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© 2010 Nokia
Mobile UIs• Maemo = Debian Linux
– Recompile and run any Debian
application
– Qt-based UI: no code changes necessary
• But: desktop != mobile
– Screen size
– Size of individual elements
– Key modifiers for mouse clicks
– Hover effects, previews
– Usage scenarios
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20.05.2010 5© 2010 Nokia
Gimp: Desktop to Mobile
20.05.2010 6© 2010 Nokia
Office
20.05.2010 7© 2010 Nokia
KOffice Viewer with Adapted UI
© 2010 Nokia
What does UX for mobile mean?– Functionality, ease of use – emotional connection
– Design for the user, not the technology
– Consider your concept and your interactions, and check against them at
every stage of development
• Users
• Device UI context
• Service usage context
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20.05.2010 9© 2010 Nokia
Design Center
forum.nokia.com/designcenter
20.05.2010 10© 2010 Nokia
User Experience forum.nokia.com/ux
20.05.2010 11© 2010 Nokia
Which is better for Nokia devices?
20.05.2010 12© 2010 Nokia
Design Gallery
http://www.forum.nokia.com/Technology_Topics/Design_and_User_Experience/Design_Gallery/
20.05.2010 13© 2010 Nokia
Design and Paper Prototyping Templates
forum.nokia.com/Technology_Topics/Design_and_User_Experience/Conceptual_Design.xhtml
20.05.2010 14© 2010 Nokia
Mobile Web Templates
forum.nokia.com/Technology_Topics/Web_Technologies/Browsing/Web_Templates/
20.05.2010 15© 2010 Nokia
Mobile Web Templates – Layouts
20.05.2010 16© 2010 Nokia
Flowella – Task Flow and Prototyping
http://www.youtube.com/watch?v=xmuJwKYjiW0
© 2010 Nokia
Behaving on a Mobile Device• Quality Assurance for publishing
– Performed for all app stores
– Includes technical and user experience tests
• Self-testing guidelines
– Symbian Signed: http://tiny.symbian.org/testcriteria
– Java Verified test criteria: http://javaverified.com/Testing
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© 2010 Nokia
Symbian Signed Test Criteria• Phone usage is critical! Examples:
– No disruption to voice calls
– No disruption to text messages
– No disruption to key device applications (messaging, contacts, calendar,
web)
– Un-installation leaves (nearly) nothing behind
– Application visible in task manager as long as it is running
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© 2010 Nokia
Java Verified Test Criteria• Even stronger focus on user experience
– Application must not crash or freeze
– No excessive battery consumption
– App must start in < 25 s
– Graphics and animation must be readable and clear
– UI must be consistent throughout the app
– Browsing through app must be clear and without unnecessary steps
– App must be free of spelling errors
– Main menu contains exit, help and about
– App must handle unexpected user behavior (e.g., erroneous actions)
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© 2010 Nokia
Post-Sale Feedback Channels• Note what your users say about your app!
– Read comments
– Update frequently and fast
– Word of mouth very strong factor!
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Users are helping users.But: better improve UI to target cause!
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