1Edit works with an internal object-oriented schema with a hierarchical set of feature classes containing a set of spatial and non-spatial attributes. A feature class can inherit attributes of multiple parent base classes (for example, a Church class could inherit attributes from a Building class and from a Religious-Building class.) Schemas currently are loaded from OGC 3.2.1 xsd schema definitions during project creation.
To view the current schema, click Data and Schema in the lower app bar. On Schema page, you can browse the list of classes for the current dataset.
Click a class to view its attributes, methods, references, the number of objects within this class, and the class' parent and child classes.