This pattern can be used whenever the actions of some active object are  to be controlled within a partially known environment.

State Control (Charlie Crane)


Starting with the context representation pattern, object archetypes would include:

  • The vehicle under consideration.
  • Other active objects controlled by digital systems.
  • Users
  • Non represented objects whose features can only be established directly.
Vehicle and context objects: (a) active identified through roles; (b) active with symbolic representation; (c) passive with symbolic representation; (d) unidentified external (no GPS).

States, Events, Actions

State machines, in particular StateCharts, provide a comprehensive tool for the modeling of dynamic systems, from requirements to implementations.

System states can be described in terms of objects, activities, or expectations (users state of mind). Events in terms of changes of the aforementioned, and actions accordingly.

Control can be set depending on the states of objects, activities, or expectations.

Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

This site uses Akismet to reduce spam. Learn how your comment data is processed.