| Interface | Description | 
|---|---|
| IDataValidation | 
 Represents a validation rule of an entity (IMetaObject) for an attribute (IMetaPrimitive). 
 | 
| IMetaAssociation | 
 Entity (IMetaObject) association member representation. 
 | 
| IMetaEnumeration | 
 Enumeration representation. 
 | 
| IMetaEnumValue | 
 Entity enumeration representation. 
 | 
| IMetaObject | 
 Entity representation. 
 | 
| IMetaObjectAccess | 
 Entity (IMetaObject) security settings. 
 | 
| IMetaObjectIndex | 
 Representation of a database index for an entity member. 
 | 
| IMetaPrimitive | 
 Entity (IMetaObject) attribute member. 
 |