ServiceNow Certified System Administration Practice

The Schema Map is indeed a graphical representation of relationships between tables within the ServiceNow platform. This tool allows administrators and developers to visualize how different tables are interconnected, which is crucial for understanding data relationships and dependencies. It enables users to see parent-child relationships, reference fields, and the overall organization of the database schema. This visual aid facilitates better data management, simplifies troubleshooting, and enhances the design of applications within the ServiceNow environment.

The other options do not accurately define the Schema Map. System performance and server status are related to monitoring and maintaining the health of the ServiceNow instance but do not pertain to the Schema Map's primary function. Documentation tools for user interfaces serve a different purpose, focusing on user experience rather than the data structure itself.