ODLI3 Language
ODLI3 extends ODL-ODMG with:
- Intensional/terminological relationships between
terms t(class and attribute names)
- <t1 SYN t2 > (Synonymy)
- <t1 BT t2 > (Broader Terms - BT)
- <t1 NT t2 > (Narrower Terms - NT)
- <t1 RT t2 > (Related Terms - RT)
- Extensional Relationships between class names
- <t1 SYNext t2 > the instance of C1 is the same of C2
- <t1 BText t2 > the instance of C1 contains the instance of C2
- <t1 NText t2 > the instance of C1 is contained into C2
-
Mapping rules (to represent relationships between the
integrated schema and the schema of
a source)
-
Union (to represent alternative data structures)
-
optional (*) (to represent optional attributes)
-
If then rules (to represent integrity coinstraints inter
intra sources)
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