Use Case Template USE CASE 1 q Based

Use Case Template USE CASE 1 q Based on Cockburn (1997) q Use case requires a set-up activity to be achieved. q Variations/Extensions explore problems during set-up. q Guidelines generated from problem solutions. q Solutions are near-term A setup goal Goal in Context User, Life-Cycle, Activity Scope & Level NA Preconditions Assumptions? Success End Condition When is goal accomplished? Failed End Condition When is goal not accomplished? Primary, Secondary Actors User and others? Trigger What starts the use case? DESCRIPTION (Main success scenario) Step 1. . x EXTENSIONS in user actions Alternative sub-steps (Potential problem and error cases) Alternative sub-steps VARIATIONS in the phone states and behaviour Action Ideal set-up solution Branching Action. These are also potential user eroors. Branching Action. These are also potential system 1

Use Cases to Explore (1) q “filling grey-time” Ø DIRK (20) IS MAKING AN MMS OF VIDEO AND AUDIO TO SEND TO A V-JAYING COMPETITION BUT HE DOESN’T HAVE “RIGHTS” TO USE THE CONTENT ON HIS PHONE Ø DOMEK (30) WANTS TO UPDATE A TRIAL VERSION OF A GAME THAT WAS PREINSTALLED ON HIS HANDSET Ø TIBO (45) WANTS LESS REGULAR WEATHER UPDATES ON THE “LIVE CONTENT” AREA OF HIS HOME SCREEN 2

Use Cases to Explore (2) q “browsing for content” Ø BRUNO (25) HAS JUST UPGRADED HIS HANDSET AND WANTS TO SEE HOW THE LATEST F 1 GAME FROM HIS FAVOURITE GAMES PORTAL LOOKS ON THE NEW HANDSET Ø SOPHIE (37) IS A JOURNALIST AND WANTS TO CHANGE HER WAP HOME PAGE AND STORE A FAVOURITE MEDIA SITE THAT SHE IS CURRENTLY VIEWING Ø ANDREW (45) HAS HEARD THAT MOBILE TRANSACTIONS ARE NOT SECURE AND WANTS TO UPGRADE THE SECURITY SETTING OF HIS BROWSER 3

Use Cases to Explore (3) q “syncronisation/update” Ø TASMIN (50) HAS JUST RECEIVED AN AUTOMATIC OTA UPDATE OF HER CONTACTS APPLICATION THAT SHE DOESNT LIKE. SHE WANTS TO RETURN TO HOW THINGS WERE BEFORE THE UPDATE. q “personalisation” Ø MARCO (40) WOULD LIKE TO CHANGE THE GREETING ON HIS NETWORK VOICEMAIL. HE WOULD LIKE TO USE AN AMUSING MP 3 FILE THAT HE HAS JUST DOWNLOADED ONTO HIS PHONE. 4