This use case provides a general outline of how to use Decision Model and Notation (DMN). This is to be illustrated using an application procedure as an example.
Procedure
Model a diagram of Decision requirements diagram type.
Procedure
You can create new DMN diagrams. Various options exist to create a diagram. The following section describes the procedure using the Explorer.
Prerequisite
The DMN diagrams type that your diagram is based on is allowed by the method filter used. You select the method filter when you log in to the database.
Procedure
If you open the database for the first time, you can specify the filter to be applied when it opens and the language you want to use for the models. Then click Finish.
The diagram is newly created in the selected group and opened for editing in a new tab.
You can now define the data that is necessary for the decision object.
Assign each input data a DMN context diagram and specify the input data for the Decision object.
Procedure
You have assigned DMN context diagrams and specified the input data.
Example
Assign a DMN decision table to the Decision object.
Procedure
You can add an Input column.
Procedure
You have added an Input column.
Tip
Click F2 to open the dialog. Use the Tab key and the arrow keys to specify a data type. Make your entries and press Enter.
You can add rules to your DMN decision table. Rules are added in new rows.
Procedure
You have added a rule.
Tip
If your mouse cursor is in the row below the last row, start typing to open the dialog. Use the Tab key and the arrow keys to specify a data type.
You can delete input data.
Procedure
The input data is deleted.
Tip
Click F2 to open the dialog. Delete the input data and click OK.
You can enter output data in an Output cell.
Procedure
You have entered output data.
Tip
Click F2 to open the dialog. Use the Tab key and the arrow keys to specify a data type. Make your entries and press Enter.
You can enter a text in an Annotation cell.
Procedure
You have entered an annotation.
Tip
Click F2 to open the dialog. Make your entries and press Enter.
You have created a DMN decision table.
You have specified all expected parameters that are needed to fell a decision.