1. APPS USABILITY
MATTERS!

2. HUMANS VS
MOBILE DEVICES
http://www.useit.com/alertbox/mobile-apps-initial-use.html

3. YOUR EYES ARE MORE AGILE
THAN YOUR FINGERS

4. YOU ONLY CONCEDE 2
SECS TO BE CONVINCED

5. TYPING IS HARD AND
PAINFUL

6. YOUR BRAIN NEED MORE
SPACE THAN A LCD TO TAKE
DECISIONS

7. WHAT’S PEOPLE
OPINION ABOUT MOBILE
APPS?
http://www.useit.com/alertbox/mobile-apps-initial-use.html

8. 74% THINK IT SHOULD
BE EASY TO USE

9. 75% THINK IT SHOULD
DO EXACTLY WHAT
THEY WANT OR NEED IT
TO DO

10. 57% THINK IT SHOULD
BE WELL DESIGNED

11. 66% HAVE DOWNLOADED AN APP
BASED ON A REVIEW OR
RECOMMENDATION

12. MOBILE APPS ARE
INTERMITTENT-USE APPS
SECONDARY
COMMITMEN
T
EASY
FOCUS
QUICK

13. WHAT PEOPLE VALUE IN AN
APP?
START-UP/WAITING TIME
PAGE LOADING BEHAVIOR
SMOOTHNESS OF
TRANSITIONS
ERRORS/BUGS

14. WHAT PEOPLE VALUEAN AN
WHAT PEOPLE VALUE IN IN APP?
APP?
EASY
QUICK
SECONDARY
HTTP://WWW.USERCENTRIC.COM/NEWS/2009/08/26/BEST-PRACTICES-DESIGNING-MOBILE-APPLICATIONS

15. USABILITY TIPS
http://uxdesign.smashingmagazine.com/2011/07/18/seven-guidelines-for-designing-high-
performance-mobile-user-experiences/
http://www.usercentric.com/news/2009/08/26/best-practices-designing-mobile-applications

16. PERFORMANCE
ALWAYS COME FIRST

17. DEFINE UI BRAND
SIGNATURES

18. IDENTIFY THE CORE
USER STORIES

19. GOOGLE PUTS “EVERY
MILLISECOND COUNTS” AS THE
SECOND PRINCIPLE OF ITS USER
EXPERIENCE
http://www.useit.com/alertbox/mobile-apps-initial-use.html

20. SPEED UP
PERCEIVED
PERFORMANCE

21. DEFINE UI SCALING
RULES
1. Essentials (the header).
2. Alternatives (opaque instead of transparent).
3. Options (reducing list length).

22. USE SMART LOADING
LIKE PUZZLE

23. MAKE SCROLLBARS AND
SELECTION HIGHLIGHTING MORE
SALIENT

24. SUPPORT USER EXPECTATIONS
FOR PERSONALIZATION

25. WHAT ABOUT BUTTONS?
 BUTTONS SHOULD HAVE THE RIGHT SIZE AND BE
SUITABLE TO BIG FINGERS
 BUTTONS IN THE SAME PLACE OF THE SCREEN
TO AVOID CONFUSION
 BUTTONS THAT HAVE THE SAME FUNCTION
SHOULD HAVE THE SAME COLOR

26. HOW SHOULD BE THE TOUCH?
 SIDEBARS ARE NOT EASY TO USE ON
TOUCHSCREENS
 FINGERPRINTS ARE MORE VISIBLE ON DARKER
BACKGROUNDS
 THERE MUST BE A WAY TO GO BACK OR UNDO
AN ACTION, AS TOUCHING THE WRONG ITEM IS
DONE QUICKLY.
 COMMON OPERATIONS DIRECTLY VISIBLE ON

27. HOW TEXT SHOULD BE USED?
 THE USAGE OF HEADERS WILL MAKE A TEXT
BETTER READABLE
 BULLETS FOR LISTS WILL MAKE A TEXT BETTER
READABLE
 TYPING TEXT IN A TEXTBOX SHOULD START
WITH AN UPPERCASE LETTER
 THE FONT SIZE SHOULD BE BIG ENOUGH, NOT
TOO BIG AND NOT TOO SMALL

28. BIGGEST MISTAKES
COMPANIES MAKE
BY JAKOB NIELSEN,
FATHER OF THE UNDERSTANDING OF HUMAN-COMPUTER
INTERACTION
http://www.clickz.com/clickz/column/2099266/jakob-nielsen-usability-mobile-sites-apps

29. TRYING TO DO TOO
MUCH

30. FORCE REGISTRATION BEFORE
THE USER EXPERIMENT THE
PRODUCT
“EARLY REGISTRATION MUST DIE!
REMEMBER: UNLESS YOURS IS A
TRULY GREAT APP THAT OFFERS
IMMENSE VALUE, PEOPLE WON'T
USE IT ENOUGH TO MAKE
REGISTRATION WORTH THEIR
WHILE.”

31. FALLING INTO TRAP OF
FOLLOWING THE
CROWD

32. DO NOT ABUSE OF SCROLL
AND NEVER USE DOUBLE
SCROOLL

33. ANDROID VS IPHONE
USABILITY
http://www.clickz.com/clickz/column/2099266/jakob-nielsen-usability-mobile-sites-apps

34. TARGET

35. PURPOSE OF BUYING

36. EXPECTATIONS FROM
APPS

37. HAVE AN APPY DAY!