EMF model validation provides the following capabilities:

1. Constraint Definition - Provides API for defining constraints for any EMF meta-model (batch and live constraints).
2. Customizable model traversal algorithms - Extensibility API to support meta-models that require custom strategies for model traversal.
3. Constraint parsing for languages - Provides support for parsing the content of constraint elements defined in specific languages. The validation framework provides support for two languages: Java and OCL.
4. Configurable constraint bindings to application contexts - API support to define "client contexts" that describe the objects that need to be validated and to bind them to constraints that need to be enforced on these objects.
5. Validation listeners - Support for listening to validation events.