# Tag Types

Tag types serve to identify the function of this entry in the cross mapping table.
The tags types and their meanings are as follows:

- E - a map-able element
- A - a map-able attribute
- N - a non-map-able tag (startSequence and endSequence for example)
- S - start label for a processing loop
- C - control label for a processing loop
- T - a defined type. Either a simple type or a complex type

See also
Processing loops