Adding elements
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In this section we will show you how to insert new elements into a model and create relations between the elements.
You have three available options to add elements:
- right click on an empty space in the document window
- right click on the element you want to add in the model browser
- use insert in the menu bar (will show the elements you can add in the selected layer)
Selecting an element will open a dialog in which you are asked to enter the name of the element.
Modelling relations between elements
You can model relationships between model elements. We will demonstrate this beginning with the domain layer.
First switch on the single layer view and switch to the domain layer.
=> 
The following is now to be modeled:
The function 'Central laboratory findings request' is completed (interpreted) by a patient and creates or modifies (edits) the object 'Central laboratory findings request document'. The function 'Central Laboratory Findings Request' is also a part of the function 'Findings Request'.
To model this behavior, click with the left mouse button on the object 'Patient' and then with the right mouse button on the function 'Central laboratory findings request'. Now select the item Uses from the context menu that appears.
An arrow is drawn from the patient object to the function 'Central laboratory findings request'. This models the relationship: Entity type 'Patient' is used by the function 'Central laboratory findings request'.
In order to model the second subject: function updates 'Central laboratory request document' click the left mouse button on the function 'Central laboratory findings request' and the right mouse button on the object 'Central laboratory request document'. Select Updates in the context menu that appears.
In order to model the function 'Central laboratory findings request' as part of the function 'Findings request', first click the left mouse button on the function 'Findings request central laboratory' and then the right mouse button on the function 'Findings request'. Select Is part of in the appearing context dialog.
Your model should now look as follows:
This would model the situation described above. You can now look in the properties dialogs of the individual elements to see how the connections just modeled are represented here.
Modelling communication links between application components
In the logical tool layer application components and the communication between them are modeled.
First start by creating application components. Similar to above you can model hierarchical relations between application component (has part, is part of).
If you want to model an information exchange between two application components, you have following options:
- select the two application components and right click on an application component and select receives from computer-based appl. component or sends to computer-based appl. component
- you can also select the component interfaces and use the context menu to add the communication link. This can also be done if only one of the application components has a communication interface. In this case you can select the desired communication interface and the application component and use the context menu to create the communication link.
Note: Application components have subordinate elements you can model. You can access these by right-clicking on n application component and using the Subordinate elements tab.
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