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Etymologie

Was (wer) ist entity-relationship diagram - definition

GRAPHICAL REPRESENTATION OF THE "FLOW" OF DATA THROUGH AN INFORMATION SYSTEM

External entity; Data Flow Diagram; Dataflow diagram; Data flow model; Physical Data Flow; Logical Data Flow; Data flow diagram

entity-relationship diagram

entity-relationship model

Enhanced entity–relationship model

ENHANCEMENT OF THE ER MODEL THAT DESCRIBES INTER-RELATED THINGS OF INTEREST IN A SPECIFIC DOMAIN OF KNOWLEDGE WITH SUBCLASS / INHERITANCE SUPPORT

Enhanced entity-relationship; Enhanced Entity-Relationship Model; Extended entity–relationship model; Enhanced entity-relationship model; Extended entity-relationship model; EER model

The enhanced entity–relationship (EER) model (or extended entity–relationship model) in computer science is a high-level or conceptual data model incorporating extensions to the original entity–relationship (ER) model, used in the design of databases.

https://en.wikipedia.org/wiki/Enhanced_entity–relationship_model

Entity-control-boundary

SOFTWARE ARCHITECTURAL CONCEPT IN OBJECT-ORIENTED USE-CASE DRIVEN DESIGN WHICH STRUCTURES THE CLASSES ACCORDING TO USE CASE REALIZATION

Entity-boundary-control; Boundary-control-entity; Robustness diagram

The entity-control-boundary (ECB), or entity-boundary-control (EBC), or boundary-control-entity (BCE) is an architectural pattern used in use-case driven object-oriented software design that structures the classes composing a software according to their responsibilities in the use-case realization.

https://en.wikipedia.org/wiki/Entity-control-boundary

Wikipedia

Data-flow diagram

A data-flow diagram is a way of representing a flow of data through a process or a system (usually an information system). The DFD also provides information about the outputs and inputs of each entity and the process itself. A data-flow diagram has no control flow — there are no decision rules and no loops. Specific operations based on the data can be represented by a flowchart.

There are several notations for displaying data-flow diagrams. The notation presented above was described in 1979 by Tom DeMarco as part of structured analysis.

For each data flow, at least one of the endpoints (source and / or destination) must exist in a process. The refined representation of a process can be done in another data-flow diagram, which subdivides this process into sub-processes.

The data-flow diagram is a tool that is part of structured analysis and data modeling. When using UML, the activity diagram typically takes over the role of the data-flow diagram. A special form of data-flow plan is a site-oriented data-flow plan.

Data-flow diagrams can be regarded as inverted Petri nets, because places in such networks correspond to the semantics of data memories. Analogously, the semantics of transitions from Petri nets and data flows and functions from data-flow diagrams should be considered equivalent.

https://en.wikipedia.org/wiki/Data-flow diagram