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Restrict the “myns:created” property to xsd:dateTime;
Restrict the “myns:hasInstance” property to resources of type “myns:Instance” or its subtypes (structural validation);
- Make myns:createdDate single-valued (i.e. cardinality = 0..1)
Make myns:uid mandatory and single-valued (i.e. cardinality = 1..1)
- Inherit property constraints from super-types
- type myns:Document has a property definition for myns:uid as mandatory and myns:content as single-valued
- type myns:TextDocument inherits these definitions
- type myns:ImageDocument inherits myns:uid but overrides myns:content to being multi-valued
- Ensure that no two resources with the same myns:uid are present in the repository (similar to a unique key constraint in a relational database)
Note
Due to the long discussion in the comments, this use case has been split into three child pages. See links below.