How can I create a hierarchical collection with CMDI?

Link from the parent .cmdi file to the child .cmdi file with a ResourceProxy that has the ResourceType Metadata.

• E.g. http://infra.clarin.eu/cmd/example/collection/collection_root.cmdi has 2 child collections:
  • http://infra.clarin.eu/cmd/example/collection/collection_lrt_inventory.cmdi, this file contains in turn links to files like:
    • http://infra.clarin.eu/cmd/example/collection/lrt/lrt-1001.cmdi - the leaf nodes
    • http://infra.clarin.eu/cmd/example/collection/lrt/lrt-1002.cmdi
    • http://infra.clarin.eu/cmd/example/collection/lrt/lrt-1003.cmdi
    • http://infra.clarin.eu/cmd/example/collection/lrt/lrt-1004.cmdi
  • http://infra.clarin.eu/cmd/example/collection/collection_olac.cmdi
    • http://infra.clarin.eu/cmd/example/collection/olac/oai_childes_psy_cmu_e...
    • http://infra.clarin.eu/cmd/example/collection/olac/oai_childes_psy_cmu_e...
    • http://infra.clarin.eu/cmd/example/collection/olac/oai_childes_psy_cmu_e...
    • http://infra.clarin.eu/cmd/example/collection/olac/oai_childes_psy_cmu_e...

The recommended profile to use for collection description is clarin.eu:cr1:p_1284723009187 ("Collection").

All files of this example collection can be accessed and explored via http://infra.clarin.eu/cmd/example/collection/

Below is a graphical representation (as shown by Arbil) of the CMDI file hierarchy used above as an example.