This presentation is about MVVM in QML/Cascades for the BlackBerry 10 operating system.

1. MVVM
Model View ViewModel
@SamVerschueren

2. whois
• @SamVerschueren
• Student

3. Table of contents
• mvvm4qml
• mvvm
• Benefits
• Building blocks
• Demo time

4. mvvm4qml
• Who?
• Sam Verschueren Belgium
• Mario Boikov Sweden
• What?
• Research
• Where?
• http://bitbucket.org/marioboikov/mvvm4qml

5. MVVM
• Model – View – ViewModel
• Design Pattern
• Related to MVC

6. Benefits
• Loosely coupled
• Unit Testing
• Reusability
• Flexibility

7. Building blocks

8. View

9. ViewModel
• Abstraction of the view
• Maintains the state of the view
• Manipulate model as result of actions in the view
• Only what’s necessary in the view

10. View - ViewModel

11. Model
• Business logic
• Holds information
• Examples
• School
• Student
• Car

12. Demo Time

13. View - ViewModel

14. ViewModel – Service