BlackBerry device
model
Display screen size Aspect ratio Pixels per inch Dot pitch (mm) Interaction
BlackBerry Torch
9850 smartphone
BlackBerry Torch
9860 smartphone
Portrait view: 480 x
800 pixels
Landscape view: 800
x 480 pixels
3.7 inches
15:9 portrait
view
253 0.1005 Touch screen,
trackpad & virtual
keyboard
Stages of application design
Design, build, evaluate, and refine your application in stages where possible. In each stage, maintain a primary focus.
• Stage 1: Understand the product requirements and user goals
• Stage 2: Develop the concepts and build the workflow
• Stage 3: Organize the content on the screen
• Stage 4: Incorporate the visual design
During each stage, design with your users in mind. Incorporate user research methods at each stage. User research helps
solve issues with the application throughout the design process and the results help to identify whether the application
meets user expectations.
UI Guidelines Getting started
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