Forum.Nokia.com
Contents  
1  Introduction................................................................................................................................................ 7 
1.1  Chapter Topics...........................................................................................................................................7 
2  Guidelines for Design................................................................................................................................ 8 
2.1  Applications for Mobile Use...................................................................................................................8 
2.2  Validating WML .........................................................................................................................................8 
2.3  GPRS Usability............................................................................................................................................8 
2.3.1  No changes required by developers ...................................................................................8 
2.3.2  Cache utilization ........................................................................................................................8 
2.3.3  Usability tips ...............................................................................................................................8 
2.3.4  Infrastructure optimization...................................................................................................9 
2.4  Site Organization......................................................................................................................................9 
2.4.1  Doormat pages...........................................................................................................................9 
2.4.2  Login..............................................................................................................................................9 
2.4.3  Detecting the browser.............................................................................................................9 
2.4.4  Optimizing for size....................................................................................................................9 
2.4.5  The first screen........................................................................................................................10 
2.5  Pictures and Tables............................................................................................................................... 10 
2.6  Efficient Navigation ..............................................................................................................................10 
2.7  Search........................................................................................................................................................10 
2.8  Titles and Element Labels...................................................................................................................10 
2.9  Error Messages and Confirmations..................................................................................................11 
2.10  A Usability Test....................................................................................................................................... 11 
3  Introduction to the User Interface......................................................................................................12 
3.1  Nokia Phones with 96 x 65 Pixel Screen Resolution.................................................................. 12 
3.2  User Interface Hardware ā Keys and Display................................................................................12 
3.2.1  Two Soft Key Display .............................................................................................................12 
3.2.2  Keys in Two Soft Key User Interface.................................................................................13 
3.3  Display Fonts........................................................................................................................................... 13 
3.4  Accessing the WAP Browser...............................................................................................................13 
3.5  Navigation, Labels, and Titles ...........................................................................................................13 
3.6  Scrolling....................................................................................................................................................14 
3.7  Picture Viewer ........................................................................................................................................14 
3.8  Cache .........................................................................................................................................................14 
4  WML Elements for the Nokia User Interface .....................................................................................15 
4.1  Text Formatting ..................................................................................................................................... 15 
4.1.1  Paragraph and content alignment...................................................................................15 
 
WAP Service Developer's Guide for Nokia Series 30 Phones with WML Browser
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