Asset Management Suite provides predefined configuration item types (also known as resource types) for many types of assets.

See About predefined configuration item types.

If the predefined configuration item types do not meet all your requirements, you can customize them in your environment. For example, for some configuration items you might have the information that cannot be stored in the existing data classes of the predefined configuration item types. In this situation you can define and add custom data classes and custom configuration item association types to the predefined configuration item types.

See Creating a custom data class.

See Creating a custom configuration item association type.

In the environment where the predefined configuration item types are not sufficient, you can create custom configuration item types. Symantec recommends that when you create a custom configuration item type, you specify a base configuration item type for it. The custom configuration item type inherits the data classes, associations, and functionality from the base configuration item type. To extend the definition of the base configuration item type, you add custom data classes and custom resource association types.

See Creating a custom configuration item type.