The CI Class Manager is the centralized and primary tool within ServiceNow for managing the Configuration Management Database (CMDB) model. It provides a hierarchical, tree-view display of all Configuration Item (CI) classes, showing their parent-child inheritance relationships. Administrators use this interface to explore the entire class structure, view and edit class definitions (including attributes and rules), and create new classes. It is specifically designed to provide a comprehensive overview of the CMDB's underlying table structure and definitions, making it the correct tool for the task described.

A. Application Menus are used for navigating to application modules, lists, and forms to interact with data records, not for exploring the underlying class model hierarchy.

B. A Report is a tool for creating visualizations and analyzing data contained within tables, not for examining the architectural definition or hierarchy of the tables themselves.

C. The Dependency view is a graphical map that shows the operational relationships between specific, individual Configuration Items (CIs), not the class structure of the entire CMDB.

1. ServiceNow Product Documentation: "CI Class Manager". The documentation states

"Use the CI Class Manager to explore

and manage CI classes in a hierarchy display. The CI Class Manager provides a centralized place to create and edit CI classes

and to view all the details of a class

such as its attributes

identification rules

and identifier entries." (ServiceNow

Tokyo Release

CMDB and CSDM

CMDB tables and the CI Class Manager).

2. ServiceNow Now Learning: "CMDB Fundamentals - On Demand". In the "CMDB Data Model" module

the course material explains

"The CI Class Manager provides a centralized place to... view a list of all CI classes in a tree-view hierarchy." This confirms its purpose as the tool for exploring the class hierarchy. (ServiceNow

Now Learning

Course ID: SN-CMDBF).