Three key principles of BlackBerry
application design
Informed
Active people rely on their BlackBerry devices to keep them informed and up to date. Make sure that status, notifications,
new information, and frequently used actions and content are easily accessible.
• Keep important information, such as status, visible so that users don't have to look for it.
• Keep menus short and put infrequently used items in options.
• Balance the information density on each screen.
• Don't place frequently used items at the bottom of a list or out of view.
Confident
Make users confident in the information that they receive when they use your application. When users know the status of
information, such as when a message is sent, they can feel confident that the application is doing what they want.
• Keep all information and options for a required task visible.
• Provide clear, concise information that helps users perform tasks.
• Give users the freedom to explore by allowing them to undo and redo actions.
• Provide feedback when the application performs what users request.
• Don't allow dead ends. Users should always have a route forward or an alternate way of interacting with the application.
• Design workflows to help users avoid errors. Provide confirmations for critical tasks.
• Help users recognize, diagnose, and recover from errors by suggesting a solution.
• Create Help that is easy to search, focused on user tasks, and lists concrete steps.
Approachable
Create applications that users are willing to use and try right away. Clean and organized layouts, appealing aesthetics,
minimalist design, and reduced complexity make applications more approachable. Since a wide range of people use
BlackBerry devices, design your application to cater to both experienced and inexperienced users.
Make screens, layouts, and information easy to understand so that users can learn the application and get started right
away. Use real world concepts and metaphors to make your application easier to understand and learn. Handle complexity
using progressive disclosure so that users are not overwhelmed. Making the application look great and easy to understand
gets people using it.
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