Aristotle & The Data Vault
Interactive Companion to the Article
Aristotle (350 BC)
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Data Vault (Modern)
Substance (Ousia)
The thing itself. The anchor of existence.
Relation
"Pros ti" (Toward something). Connections between substances.
Accident
Properties (Quality, Time, Place) that can change.
Hub
Business Key only. Proves the entity exists.
Link
Unique list of keys. Connects two or more Hubs.
Satellite
Descriptive data. Insert-only history of changes.
The Laboratory: Object vs. Data
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Database Log
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TABLE: HUB_ITEMS (Substance)
HASH_KEY
ITEM_TYPE
TABLE: LINK_TRANSACTIONS (Relation)
LINK_ID
ACTION
PARTY_ID
TABLE: SAT_ITEM_Details (Accident)
TIME
COLOR
LOC