Mobile Interaction

Question 1

What are the navigation models for IOS and Android?

Answer 1

IOS:
- Tab bar on bottom
- Home button
- Top navigation
- Navigation buttons on left and right of top bar
- Notification Pulldown
- Widgets

Android:
- Tab bar on top
- Action bar
- Side panel menu
- Concept of activity stack
- Back button
- Home button
- Notification pull down
- Widgets

Question 2

What are the mobile design guidelines?

Answer 2

• Design for simplicity
• Minimize user input
• Minimize vertical scrolling, avoid vertical horizontal scrolling
• Prioritize information in each screen
• Useful error messages, feedback
• Ensure fast system response time
• Relate visual precedence to task importance
• Need to be focused, more is not better
• Navigation should be narrow and shallow
• Keep the most important features

Question 3

What are some common and newer gestures?

Answer 3

Common: Swipe left or right, pinch to zoom(2 fingers), rotate (2 fingers)

Newer gestures: Press & hold (3D touch), more than 3 fingers, Gaze, Face ID, “Air”

Question 4

What are mobile constraints?

Answer 4

Resource-poor relative to static devices, finite energy source, mobile connectivity highly variable and inherently hazardous.