When a Windows Server is reclassified from the Server [cmdb_ci_server] table to the Windows Server [cmdb_ci_win_server] table, which one of the following describes the process that occurred?

In the ServiceNow Common Service Data Model (CSDM) and Configuration Management Database (CMDB), reclassifying a Configuration Item (CI) from a parent class to a more specific child class is termed a "Class Downgrade." The Windows Server [cmdbciwinserver] table is a child class that extends the more generic parent Server [cmdbciserver] table. This "downgrade" moves the CI down the class hierarchy, allowing it to inherit the parent's attributes while also utilizing the more specific attributes defined in the child class. This process ensures the CI is classified with the greatest level of specificity possible.

A. Class Change: This is a generic term. While a change of class occurs, "Class Downgrade" is the specific, official ServiceNow term for moving to a descendant class.
B. Class Upgrade: This is the opposite process, where a CI is moved from a specific child class to a more generic parent class (e.g., from Windows Server to Server).
C. Class Switch: This is not a standard ServiceNow term for reclassifying a CI within its existing class hierarchy. This term might imply moving to a completely different branch of the hierarchy.

1. ServiceNow Product Documentation - Reclassify a CI:

Reference: "Reclassify a CI," ServiceNow Product Documentation, Vancouver release.

Content: The documentation explicitly defines the two types of reclassification:

Downgrade: "Change the class of a CI to a more specific class in the CI's class hierarchy. For example, downgrade a CI from the Server [cmdbciserver] class to the Linux Server [cmdbcilinuxserver] class." This directly corresponds to the scenario in the question.

Upgrade: "Change the class of a CI to a less specific class in the CI's class hierarchy."

2. ServiceNow CMDB and CSDM Fundamentals Courseware:

Reference: ServiceNow Training, "CMDB Fundamentals," On-Demand Course Material, Module: "Populating the CMDB."

Content: The course materials detail CI reclassification, reinforcing that moving down the hierarchy to a more specific class (e.g., Server to Windows Server) is a downgrade, while moving up to a more general class is an upgrade. This terminology is foundational to CMDB data management principles.