Statemachine modeling

• You can create a statemachine diagram if you right click a block and select "Add/ State Machine". Then name the statemachine and click "OK".
• Create composite states by moving other states into other states.
• Create multiple paralell regions within states in the "Regions" tab of the Preferences window. Define the name of the region in the "Name" field and click "Add".
• You can define the guard of a transition if you select a transition, and in the "Constraint" tab of the Preferences window.
• In the "Constraint" tab of the Preferences window you can add triggers to transitions if you click "New" specify the name of the trigger and click "Save". The name and the label of the trigger is not affected by the type and the specification of the trigger. As a result, you should mind follow the syntax of the trigger labels when you define the name of triggers.
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• In the "Constraint" tab of the Preferences window you can activites as effects of transitions if you set the "Effect is a Behavior" option.
• You can set the entry, do and exit actions of states in the "Behavior" tab of the Feature window. Firstly, you define the name of the action and if you double click the name of the action you can specify the referenced activity.

Activity modeling

1. You can create an activity diagram if you select SysML persepective and you right click on any block or package and select "Add/Activity/with Activity Diagram". In the pop-up window specify the name of the activity and press "OK".
2. Drag and drop elements from the "Toolbox" to create new elements in the activity diagram.
3. Add actions from the Toolbar and int the pop-up menu select the type of the new action.
4. In the case of "Send" and "Accept" actions, you can specify in the "Properties" window the port of the actions in the "On Port" field in the "Element" tab.
5. You can specify the transmitted or recieved signal in the "Signal" of the "Condition" tab in the "Properties" window.
6. Unfortunately none of these properties is visualized in the diagram, therefore it is strongly advised to add a note, which contains all these information.

Sequence modeling

1. You can create a sequence diagram if you right click an element in the "Browser" and select add diagram and choose "Sequence Diagram".
2. You can create new objects with lifelines using by draging "Sequence" elements from the "Toolbox".
3. Alternatively, you can drag and drop existing elements from the "Browser" into the diagram. The Enterprise Architect will automatically add lifeline to the elements. Moreover you can add properties of the elements to the diagram.
4. Using the "Toolbox" you can add messages into the diagram.
5. You can add signals and data objects to the messages if you right click on a message and select the "Advanced/Information Flows Realized" command. In the pop-up windows you shall click on "Create new information flow" field and select a Class or a Signal.
6. You can add duration and timing constraints to messages if you right click on a message and select "Timing Details". In the pop-up window you can specify the timing related constraints and observations.
7. You can set the synchronicity type of a message if you right click on a message and select the "Toogle IsReturn" command.
8. You can modify the lifeline activations if you right click on a message and select the "Activations/Extend Source Activation" commands.
9. You can add fragments using the toolbox.
10. You can add multiple region to a fragment by adding new conditions in the "Combined fragment" tab of the "Properties" window.