LogicModule 03
Logic
Tap a plane, or press Place order to watch one click travel down.
The rules between the screen and the database: what a click is allowed to do, and in what order things happen.
Interactive demo
Click a layer of the app
Click a layer
Views
The screens a person actually looks at. Each web address maps to one view, assembled out of components.
How a click travels
component click -> logic checks the rules -> database records the change -> view re-draws with the new data
What makes this work
01
Decide
Is this allowed
02
Coordinate
Save, then notify, then confirm
03
Recover
What happens when a step fails
Related concepts