ER ModelsERM ReferencesERM Anthologies
Model No.61
Short Citation (Loucopoulos et al. 1991)
Year 1991
Special Name ERT (ER-Time)
Descendant of
ConstructsInherent Entity Type r: class, sg: time period class, complex object, derived
Relationship Type sg: generalization/specialization, derived, sg/l: cardinality
Value Sets / Attributes sg/l: complex, role
NewInventedAdapted
Included
BorrowedIncluded
Added
Syntactic Rules X
Semanticsformalized
Focus g/t
Data Definition l
Data Manipulation l
Remarks
CauseCitation... capturing and representation of business rules (p. 323). ... the need for expressiveness power of conceptual modelling formalisms... (p. 324).
ContentExpressivenessintegrity
Applicability
Correction
Integration
Implementation
Other
Alternative Publications (Theodoulidis et al. 1991), (Theodoulidis et al. 1992)
Binary Vector Structure/General [E1] 1
[E2] 1
[E3] i
[E4] 1
[E5]
[E6]
Structure/Integrity [E7]
[E8]
[E9] i
[E10] 1
[E11] 1
[E12] 1
[E13] i
[E14] i
[E15] f
[E16] f
Behavior [E17]
[E18]
Application [E19]
[E20]
[E21]
[E22]
[E23]
[E24]
[E25]
[E26]
[E27]
Domain-Specifics [E28]
[E29]
[E30]
[E31]
[E32]
[E33]
Expressiveness Values Total 0.36
Data Model 0.67
Application 0.00
Domain Specifics 0.00
Partially Redundant Constructs Conjunctive Concepts S, J, T
Linked Concepts D
Copyright(a) Susanne Patig, 2005