| ER Models | ERM References | ERM Anthologies |
| Model No. | 58 | |||
| Short Citation | (Gogolla/Hohenstein 1991) | |||
| Year | 1991 | |||
| Special Name | EER | |||
| Descendant of | different EER | |||
| Constructs | Inherent | Entity Type | X | |
| Relationship Type | sg: min/max,derived, functional | |||
| Value Sets / Attributes | sg: multivalued, optional, derived, components, role, key | |||
| New | Invented | Adapted | type construction | |
| Included | ||||
| Borrowed | Included | |||
| Added | ||||
| Syntactic Rules | Different input entity types are connected by type constructors to form separate output entity types [requirements]. | |||
| Semantics | formal | |||
| Focus | t | |||
| Data Definition | l | |||
| Data Manipulation | l | |||
| Remarks | ||||
| Cause | Citation | ... concentrating nearly all concepts of ... semantic data-models...., ... provide our extended ER model with a formal mathematical semantics (p. 369) | ||
| Content | Expressiveness | |||
| Applicability | ||||
| Correction | X | |||
| Integration | X | |||
| Implementation | ||||
| Other | ||||
| Alternative Publications | (Engels et al. 1992/93) | |||
| Binary Vector | Structure/General | [E1] | i | |
| [E2] | 1 | |||
| [E3] | 1 | |||
| [E4] | 1 | |||
| [E5] | 1 | |||
| [E6] | 1 | |||
| Structure/Integrity | [E7] | 1 | ||
| [E8] | 1 | |||
| [E9] | i | |||
| [E10] | 1 | |||
| [E11] | 1 | |||
| [E12] | 1 | |||
| [E13] | a | |||
| [E14] | i | |||
| [E15] | 1 | |||
| [E16] | 1 | |||
| Behavior | [E17] | |||
| [E18] | ||||
| Application | [E19] | |||
| [E20] | ||||
| [E21] | ||||
| [E22] | ||||
| [E23] | ||||
| [E24] | ||||
| [E25] | ||||
| [E26] | ||||
| [E27] | ||||
| Domain-Specifics | [E28] | |||
| [E29] | ||||
| [E30] | ||||
| [E31] | ||||
| [E32] | ||||
| [E33] | ||||
| Expressiveness Values | Total | 0.48 | ||
| Data Model | 0.89 | |||
| Application | 0.00 | |||
| Domain Specifics | 0.00 | |||
| Partially Redundant Constructs | Conjunctive Concepts | S | ||
| Linked Concepts | O | |||