ServiceNow provides the Schema Map as the platform feature specifically designed to display a graphical representation of how tables relate to one another. In application development, tables commonly extend other tables and also reference other tables through reference fields. The Schema Map visualizes these relationships so developers can quickly understand the structure of the data model, including parent-child extensions and reference connections. This is especially useful when you are designing an application’s data model, troubleshooting why a field appears on multiple tables, or assessing the impact of adding a new relationship. The Schema Map is not a general “graphical user interface” concept; it is a dedicated view focused on the database schema. Likewise, a “dependency view” may exist for other platform features (such as dependency relationships for services or configuration items), but it is not the standard tool used to explore table-to-table schema relationships during application development. Because the question asks for a graphical view of relationships among tables, the correct documented feature is Schema Map.