Reactive Systems
- Tags
- soft-eng
Describes a [see page 3, system] that exists in one of several states and exhibits different behaviours in each state. The same action when done under different states may trigger different reactions.
Such systems respond to events in different ways depending on the current state. For example a vending machine that ignores drink dispensing buttons until enough coins have been dispensed.
Table 1:
Terms used to describe reactive systems.
| Term | Description |
|---|---|
| Events | Requests which are handled by the system. |
| Actions | Performed in response to events. |
| States | Whichc affect how the system responds. |
| Transitions | Routes that exit or enter states. |