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- Your thesaurus URIs must match those used in instance data, else things won’t mesh. E.g. in meta you’ve used thesauri/aspect. But the Turtle examples in my page, and Daniel’s RDF files about images, use thesauri/image/flag. If you prefer, call it thesauri/image/aspect, but then edit my examples and Daniel’s conversion to use that same ConceptScheme.

| *ConceptScheme* | *comment* |
| *Meta ConceptScheme* | *comment* |
| http://collection.britishart.yale.edu/id/thesauri/aspect | rename to image/flag/ |
| http://collection.britishart.yale.edu/id/thesauri/person-institution | you have the info to define it fully |
| http://collection.britishart.yale.edu/id/thesauri/material | Move example technique to /technique |
| http://collection.britishart.yale.edu/id/thesauri/materialType/ | Technique is not a material. Describe in [#Material and Technique] how you intend to use this |
|http://collection.britishart.yale.edu/id/thesauri/matcult | http://collection.britishart.yale.edu/id/thesauri/matcult | "16th century" is NOT a [#Period/Culture] |
| http://collection.britishmuseum.org/id/place/type |"YCBA uses only 1 term to describe place type": so delete this row!|
| http://collection.britishart.yale.edu/id/thesauri/identifier/TMS/ | this is a term not a scheme|
| http://collection.britishart.yale.edu/id/thesauri/identifier/TMS/exhibition history/ |this is a term not a scheme. It's better called identifier/exhibition|
| http://collection.britishart.yale.edu/id/thesauri/institution |YCBA is already listed in ULAN, and you have person-institution. So do you really need this?|
| http://collection.britishart.yale.edu/id/thesauri/qualification |Called above /likelihood|
| http://collection.britishart.yale.edu/id/thesauri/title/repository_title ... |these are terms not schemes. And remove the _title suffix since you got /title prefix|
| http://collection.britishart.yale.edu/id/thesauri/preferred,alternate |You don't need this: preferred=repository, all the rest are alternate|
| http://www.researchspace.org/thesaurus/iconclass/ |Use the original URI, see [Iconclass#Iconclass in YCBA RDF]|
| http://vocab.getty.edu/resource/aat/subject/ |Use per-facet AAT schemes. Call them "AAT Subjects", "AAT Materials", "AAT Styles/Periods", "AAT Processes/Techniques"|
|http://vocab.getty.edu/resource/tgn/ |Use http://vocab.getty.edu/tgn/ |
|http://vocab.getty.edu/resource/ulan/ |Use http://vocab.getty.edu/ulan/ |
| http://vocab.getty.edu/resource/tgn/ |Use http://vocab.getty.edu/tgn/ |
| http://vocab.getty.edu/resource/ulan/ |Use http://vocab.getty.edu/ulan/ |

h3. Validate Concept Instance Schemes
This command extracts skos:inScheme statements from instance data (all Ttl files):
This command extracts skos:inScheme statements from instance data (all Ttl files). Run it in the data/ directory:
{code:bash} grep -h inScheme ttl/* cds_ttl/* ycba2cds/* | perl -pe "s{.*inScheme }{}; s{ [;.]$}{}" | sort | uniq {code}
If you're on linux you got these tools. If you're on Windows, install [http://cygwin.org].
- Schemes in instances but not in meta: are undefined
- Schemes in meta but not in instances: are either useless, or indicate a defect in instance mapping (scheme is not specified).
In particular I'm worried that the list below is quite shorter than in meta.
In particular I'm worried that the instance list is quite shorter than the meta list.
- (!) It DOES matter whether there is a trailing slash or not. My preference is to consistently use a trailing slash (so the scheme is a full prefix of the term), but that's up to you. Whatever you choose, you must be consistent

| *ConceptScheme* | *comment* |
| <http://collection.britishart.yale.edu/id/thesauri/genre/> | ok |
| *Instance ConceptScheme* | *comment* |
| http://collection.britishart.yale.edu/id/thesauri/genre/ | ok |
| <http://collection.britishart.yale.edu/id/thesauri/image/flag/> http://collection.britishart.yale.edu/id/thesauri/image/flag/ | ok: but wrong in meta |
| <http://collection.britishart.yale.edu/id/thesauri/image/format/> http://collection.britishart.yale.edu/id/thesauri/image/format/ | ok: but wrong in meta |
| <http://collection.britishart.yale.edu/id/thesauri/inscription/> | ok |
| http://collection.britishart.yale.edu/id/thesauri/inscription/ | ok |
| <http://collection.britishart.yale.edu/id/thesauri/institution> http://collection.britishart.yale.edu/id/thesauri/institution | nok: how about /person-institution ? |
| <http://collection.britishart.yale.edu/id/thesauri/matcult> http://collection.britishart.yale.edu/id/thesauri/matcult | ok: But note that "16th century" is NOT a [#Period/Culture] |
| <http://collection.britishart.yale.edu/id/thesauri/material> | ok |
| http://collection.britishart.yale.edu/id/thesauri/material | ok |
| <http://collection.britishart.yale.edu/id/thesauri/measurement> http://collection.britishart.yale.edu/id/thesauri/measurement | ok. But where are /dimension terms? |
| <http://collection.britishart.yale.edu/id/thesauri/nationality> | ok |
| <http://collection.britishart.yale.edu/id/thesauri/object> | ok |
| <http://collection.britishart.yale.edu/id/thesauri/place> | ok |
| <http://collection.britishart.yale.edu/id/thesauri/subject/> | ok |
| <http://vocab.getty.edu/aat/periods> | nok: see [#AAT Concept Schemes] |
| <http://vocab.getty.edu/aat/subject/> | nok: see [#AAT Concept Schemes] |
| <http://vocab.getty.edu/tgn/subjectPlace> | nok: stop at /tgn or /tgn/ |
| <http://vocab.getty.edu/ulan/person-institution> | nok: stop at /ulan or /ulan/ |
| ycba:person-institution | nok: add /thesauri for consistency (you use it for /place) |
| http://collection.britishart.yale.edu/id/thesauri/nationality | ok |
| http://collection.britishart.yale.edu/id/thesauri/object | ok |
| http://collection.britishart.yale.edu/id/thesauri/place | ok |
| http://collection.britishart.yale.edu/id/thesauri/subject/ | ok |
| http://vocab.getty.edu/aat/periods | nok: see [#AAT Concept Schemes] |
| http://vocab.getty.edu/aat/subject/ | nok: see [#AAT Concept Schemes] |
| http://vocab.getty.edu/tgn/subjectPlace | nok: stop at /tgn or /tgn/ |
| http://vocab.getty.edu/ulan/person-institution | nok: stop at /ulan or /ulan/ |
| ycba:person-institution | nok: add /thesauri for consistency (you use it for /place) |

h3. CRM Types of Thesauri