Interim Report

ANSI/X3/SPARC Study Group. (1975). Interim Report: Study Group on Data Base Management Systems 75-02-08. FDT—Bulletin of ACM SIGMOD, 7(2).

Type

Journal article

Intellectual base

Primary research

Year

1975

Link

https://sigmod.org/publications/dblp/db/journals/sigmod/SPARC75.html

Cited by

1 citation across 1 artifact.

Domain-specific

• Data Model
  • … concerns while separating logical representation from machine organization. Chen's entity–relationship model made entities, relationships, and attributes explicit for conceptual design. ANSI/SPARC distinguished external, conceptual, and internal schemas, clarifying that one subject can have several modeling levels.

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