| Data
Structure Overview |
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| ® | ERD + DED -->
??? |
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| ® | Data Dictionary
Elements |
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| ® | plus entity
identifiers |
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| ® | plus pointers
between entities |
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| ® | Data Dictionary
Definitions |
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| ® | plus data types |
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| ® | functionality |
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| ® | optionality &
cardinality |
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