Entity Relationship Diagram Software for Mac

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Design elements Peter Chen notation

One of the most popular semantic data models is the "entity-relationship" model (often called ER-model). Most of the modern approaches to the database (mainly relational) design are based on the usage of different versions of ER- model. The model was proposed by Peter Chen in 1976. Domain modeling is based on the use of graphic charts, including a small number of heterogeneous components. The simplicity and the presentation clarity of the conceptual basis of these ER-model schemes led to its widespread deployment in the CASE-systems that support automatic design of relational databases.

The basic concepts of ER-models are the entity, the relation and attribute. An entity is a real or abstract object, information about which should be kept and be available. The entity in an ER-model diagram is represented by a rectangle containing the name of the entity. In this case, the name of the entity is not a particular instance of this entity, but a label for the whole entity. Although it would be more correct to use such terms as ‘an entity type’ and ‘an instance of the entity type’ to avoid verbosity, in cases where it does not lead to ambiguity, the term “entity” is used in the meaning of the entity type. For instance, let’s think of an entity named “airport”. In this case, “airport” is the entity type, and “Heathrow” or “Charles de Gaulle” are the instances of this entity.

A relation is a graphically depicted association between two entities. As well as the entity, a relation is a typical concept, all instances of the linked entity types are subject to the rules established by the connecting. Therefore, it is more correct to speak about the relationship type made between types of entities and about the instances of relationship types made between instances of the entity type. In common ER-model this association is always binary and can exist between two different entity types or can be recursive.

ConceptDraw PRO is a famous Entity Relationship Diagram software for Mac OSX which gives the ability to describe visually the databases using the Chen’s notation icons and Crow’s Foot notation icons for drawing ER diagram (ERD).

Example 1. Entity Relationship Diagram Software for Mac

The Entity-Relationship Diagram (ERD) solution from ConceptDraw Solution Park extends ConceptDraw PRO vector graphics and diagramming software with the ability to describe a database using the Entity-Relationship model.

ERD Symbols - Chen's Notation

Example 2. ERD Symbols - Chen's Notation

You have a choice to design your ERDs from the beginning with help of predesigned vector objects from the ERD Chen's Notation or ERD Crow's Foot Notation libraries, or start with ready ERD templates or samples included to Entity-Relationship Diagram (ERD) solution and offered at ConceptDraw Solution Browser.

Entity Relationship Diagrams solution

Example 3. Entity Relationship Diagrams solution

Use unique ConceptDraw PRO diagramming and vector drawing software enhanced with Entity-Relationship Diagram (ERD) solution to draw ER diagrams using Chen's or Crow's Foot notations on your Macintosh computers.

No other Entity Relationship Diagrams software gives you all this:

  • Design and document using a wide range of pre-drawn erd shapes and smart connectors.
  • Great value for the money, only $199 dollars.
  • Free technology support.
  • Free examples and built-in templates to help you draw entity relationship diagrams rapidly.

Use Product:

  • Software Development Tool
  • Diagram Software
  • Technical Diagramming Tool
  • Business Diagramming Tool
  • Professional Business Graphics Tool
  • ERD Diagrams Software
  • Cross Platform Compatibility
  • ConceptDraw PRO native Mac app
  • Easier to use than Microsoft Visio® and more powerful
  • With free support and thousands of templates

Use Solution:

Entity-Relationship Diagram (ERD)
  • Describing a database
  • Illustrate the logical structure of databases
  • Chen's notation
  • Crow’s Foot notation
  • Quick-Start ERD templates and samples
  • Entity Relationship Diagram examples
  • ERD vector elements
  • Import/Export Microsoft Visio™
  • Export to graphics files and PDF
  • Export to PPT™
  • Make Presentation

See also samples:

Compatibility: Apple® OS X 10.10 or later
Microsoft® Windows® 7/8.1/10

Price: ConceptDraw PRO US$199
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