Question

Explain the two types of behavioral modeling: data-driven modeling and event-driven modeling (state diagram) providing examples showing the internal and external interation for each.

Answer 1

Answer)

The data-driven programming is defined to be the kind of programming model wherein the data would control the program's flow. Whereas in the Event-driven programming the data would control the flow of the program and not the event.

The data-driven programming refers to the general code that is present which would not contain any of the business logic involved and also would not have a control flow. This would just read the data, process it and provide the output result. Here the logic, as well as the control flow, is the data itself and any change needed for the business logic is done by changing the data and not the code. Here code refers to the pipelining of the executable command that depends on the input data.

Example: Refilling the water bottle which has the framework intact whereas the water gets to be changed which means the data is being changed.

The internal and external interaction here would happen from state to state where only the data is being changed and every time the data is changed the output is given.

While on the other hand the event-driven programming logic is being controlled by the events which refer that the data, as well as the other business rule, gets placed in the code where event would have some data, as well as logic that can change with regards to the event's data but any change to the logic rule, would need the data or the code related change as the logic is in the code.

Example: Microven would show the event-driven modeling where the action is to heat and there is a stimulus which causes the transition from one state to the other.

The events are waiting to full power, the power to set the timer when the timer is enabled then the operation starts and finally ends when the timer is stopped or it has been manually stopped.

Internal and external interaction for event-driven modeling is with minimal data processing and in real-time systems which is mostly based on the assumption that the system would have a finite number of the state as well as events which might create a transition from one of the state to the other state and finally produces the output when the transition is completed.

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