5.2. Creating the traffic violations DMN custom data types

Procedure

1. To create the tDriver custom data type, click Add a custom Data Type on the Data Types tab, enter tDriver in the Name field, and select Structure from the Type list.

2. Click the check mark to the right of the new data type to save your changes.

   図5.5 The tDriver custom data type

   

3. Add each of the following nested data types to the tDriver structured data type by clicking the plus sign next to tDriver for each new nested data type. Click the check mark to the right of each new data type to save your changes.

   • Name (string)
   • Age (number)
   • State (string)
   • City (string)
   • Points (number)
4. To create the tViolation custom data type, click New Data Type, enter tViolation in the Name field, and select Structure from the Type list.

5. Click the check mark to the right of the new data type to save your changes.

   図5.6 The tViolation custom data type

   

6. Add each of the following nested data types to the tViolation structured data type by clicking the plus sign next to tViolation for each new nested data type. Click the check mark to the right of each new data type to save your changes.

   • Code (string)
   • Date (date)
   • Type (string)
   • Speed Limit (number)
   • Actual Speed (number)

7. To add the following constraints to the Type nested data type, click the edit icon, click Add Constraints, and select Enumeration from the Select constraint type drop-down menu.

   • speed
   • parking
   • driving under the influence
8. Click OK, then click the check mark to the right of the Type data type to save your changes.

9. To create the tFine custom data type, click New Data Type, enter tFine in the Name field, select Structure from the Type list, and click Save.

   図5.7 The tFine custom data type

   

10. Add each of the following nested data types to the tFine structured data type by clicking the plus sign next to tFine for each new nested data type. Click the check mark to the right of each new data type to save your changes.

    • Amount (number)
    • Points (number)
11. Click Save.