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2. Barker's notation - Wikipedia

   en.wikipedia.org/wiki/Barker's_notation

   Barker's notation refers to the ERD notation developed by Richard Barker, Ian Palmer, Harry Ellis et al. whilst working at the British consulting firm CACI around 1981. The notation was adopted by Barker when he joined Oracle and is effectively defined in his book Entity Relationship Modelling as part of the CASE Method series of books.

3. Entity–relationship model - Wikipedia

   en.wikipedia.org/wiki/Entity–relationship_model

   It occurs when a (master) table links to multiple tables in a one-to-many relationship. The issue derives its name from the visual appearance of the model when it is drawn in an entity–relationship diagram, as the linked tables 'fan out' from the master table. This type of model resembles a star schema, which is a common design in data ...

4. Toolkit for Conceptual Modeling - Wikipedia

   en.wikipedia.org/wiki/Toolkit_for_Conceptual...

   The Toolkit for Conceptual Modeling (TCM) is a collection of software tools to present specifications of software systems in the form of diagrams, tables, trees, and the like. TCM offers editors for techniques used in Structured Analysis as well as editors for object-oriented (UML) techniques.

5. Cardinality (data modeling) - Wikipedia

   en.wikipedia.org/wiki/Cardinality_(data_modeling)

   In the object-oriented application programming paradigm, which is related to database structure design, UML class diagrams may be used for object modeling. In that case, object relationships are modeled using UML associations, and multiplicity is used on those associations to denote cardinality .

6. yEd - Wikipedia

   en.wikipedia.org/wiki/YEd

   yEd can be used to draw many different types of diagrams, [4] including flowcharts, network diagrams, UMLs, BPMN, mind maps, organization charts, and entity-relationship diagrams. yEd also allows the use of custom vector and raster graphics as diagram elements. yEd loads and saves diagrams from/to GraphML, an XML-based format. It can also print ...

7. List of Unified Modeling Language tools - Wikipedia

   en.wikipedia.org/wiki/List_of_Unified_Modeling...

   Mind Mapping, ER Diagram, DFD, Flowchart, CRUD, Traceability Map, Requirement Diagram and Requirement table. Provides API and Plugins, RTF, HTML Export. ATL: Yes No Yes No Un­known Un­known Available from the Eclipse M2M project (Model to Model). Can transform UML & EMF models into other models.

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9. Database design - Wikipedia

   en.wikipedia.org/wiki/Database_design

   A sample entity–relationship diagram. One of the most common types of conceptual schemas is the ER (entity–relationship model) diagrams. Attributes in ER diagrams are usually modeled as an oval with the name of the attribute, linked to the entity or relationship that contains the attribute.