Since edition 2 it will be a versioning of schema for SCL-files.
The DUT and the configuration file should be conform to one specific schema.
It is necessary to have a download area for all schema versions in electronic form.
Include versioning description acc. testing configuration files.
The certification should have the information which version of schema belongs to.
From time to time we should publish a UCAinternational certified schema with incorporated tissues in electronic form for conformance testing.