Hi,
I understand that you want to know about the terms used in the Symbol Wizard. You can visit the documentation link attached at the end for more information.
Data: Any input or output data related to the Simulink model belongs here.
Event: Any external actions that you want to trigger can be done by sending events to the Simulink model.
Message : Send, receive, and forward messages that carry data to communicate between models, and unlike events, messages are queued until the receiving component can process them.
Input and Output: You can create inputs from and outputs to Simulink models and share data with other blocks in your Simulink model through input and output port connections.
Local: Local typically refers to variables or data that are accessible only within the model or chart where they are defined.
Constants: Constants are variables whose values do not change once they are set initially in your model.
Parameter: To create easily modified constants within your Stateflow chart, use parameters that have been defined in the MATLAB workspace or inherited from a Simulink block parameter.
Data store memory: Using this, you can share global data across multiple charts or models.
Documentation links:
I hope this helps to resolve your query.
