Data Modeling

← Back to Domain-Specific Abstractions by Domain

3 domain-specific abstractions whose origin domain is Data Modeling.

• Entity–relationship model — A conceptual data model representing entity types, their attributes and the relationships and cardinalities connecting entity instances in a domain.
• One-to-many (data model) — A relationship cardinality in which one parent entity may relate to multiple child entities while each child participates with at most one parent in that relationship, commonly enforced by a child-side foreign key.
• Structured entity relationship model — An entity–relationship extension that organizes large data schemas through existence dependencies and structured entity types.