ER ModelsERM ReferencesERM Anthologies
Model No.47
Short Citation (Parent/Spaccapietra 1992)
Year 1989
Special Name ERC+
Descendant of
ConstructsInherent Entity Type sg: complex objects
Relationship Type sg: optional, min/max, generalization
Value Sets / Attributes sg: surrogate key, complex, sg/l: role
NewInventedAdapted
Included
BorrowedIncluded
Added
Syntactic Rules X
Semanticsformal
Focus g/t
Data Definition
Data Manipulation l
Remarks
CauseCitationA richer semantic model [for integration of heterogeneous schemas] was needed (p. 69). ... besides .. expressive power, friendliness was assigned as additional requirement... (p. 69).
ContentExpressivenessstructure
ApplicabilityX
Correction
Integration
Implementation
Other
Alternative Publications
Binary Vector Structure/General [E1]
[E2] 1
[E3] i
[E4]
[E5]
[E6]
Structure/Integrity [E7] 1
[E8]
[E9] i
[E10] 1
[E11] 1
[E12] 1
[E13]
[E14] i
[E15]
[E16]
Behavior [E17]
[E18]
Application [E19]
[E20]
[E21]
[E22]
[E23]
[E24]
[E25]
[E26]
[E27]
Domain-Specifics [E28]
[E29]
[E30]
[E31]
[E32]
[E33]
Expressiveness Values Total 0.24
Data Model 0.44
Application 0.00
Domain Specifics 0.00
Partially Redundant Constructs Conjunctive Concepts S
Linked Concepts O, C
Copyright(a) Susanne Patig, 2005