How to Extend a Class in the Authoring Tool
Updated: May 13, 2016
Applies To: System Center 2012 SP1 - Service Manager, System Center 2012 R2 Service Manager, System Center 2012 - Service Manager
You can extend a class in the System Center 2012 – Service Manager Authoring Tool by adding properties and relationships to the definition of the class. Extending a class affects all existing instances of that class: all instances of that class will be updated to include the new properties and relationships.
To extend a class
If the Management Pack Explorer pane is not visible in the Authoring Tool, click View, and then click Management Pack Explorer.
In the Management Pack Explorer pane, locate and right-click the class that you want to extend, and then click Extend class.
In the Target Management Pack dialog box, select an unsealed management pack to store the class extension, and then click OK.
The Class properties and relationship list on the Extension of <class> tab in the authoring pane displays the properties and the relationships of the class. Create new properties and relationships as follows:
Click Create property; in the Create property dialog box, type a name in Internal name for the new property; and then click Create.
Click Create relationship; in the Create relationship dialog box, type a name in Internal name for the new relationship; and then click Create.
When you are extending a class, do not define a property with an ID that is already in use in that class.
Locate and select the new property or relationship in the Class properties and relationship list, and modify its properties in the Details pane as needed.