In this step by step tutorial we show all three methods how to model and simulate states and activities (functions) of the system together in context of single executable system model.

Activities are behaviors and they can be executed by the state.

But what if we have more then one activity? Which shall be executed while in the state? We have at last three ways to solve this problem:
1. Multiple inner states associated with activities as behaviors.
2. One activity executed by the state and this activity is calling other activities.
3. Internal transitions triggered by signals and executing activities as an effects

Here is the model: https://www.dropbox.com/s/e0obc5qxpq5...