Rated 5.0 (1 rating)

Entity Relation Diagram (ERD)

Allows you to draw simple Entity Relation Diagrams (the first page). ERDs are useful in the early stages of a project, especially if you are using formal approach such as Structured Systems Analysis and Design Methodology (for which there is a SSADM stencil) or IDEF0.

I have added an extension, which allows indices to be identified at the ERD level. I will be adding an extension to assist in the progressive definition of Relations shortly.

ERDs show the Entity Level of a DataModel. In the later stages of analysis and design, a full Data Model (starting on the second page) is more appropriate; if you are not using a Modelling tool, you may be interested in the Data Model (IDEF1X) stencil.

Stencil Version 1.0/02 May 10. (I make improvements and maintain the stencil on Graffletopia.) Please send feedback to derek.asirvadem@gmail.com more…

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Added on May 2, 2010 6,290 downloads 20 favorites

Preview label Preview for Entity Relation Diagram (ERD)
To install, drag stencil to this folder:
~/Library/Application Support/The Omni Group/OmniGraffle/Stencils/
This stencil works with:
  • Omnigraffle OmniGraffle
  • Omnigraffle_professional OmniGraffle Pro
  • Omnigraffle_for_ipad OmniGraffle for iPad

Comments

gravatar for DerekAsirvadem

DerekAsirvadem — almost 2 years ago

For questions relating to the copyright notice, refer to the first comment in Data Model (IDEF1X).

gravatar for glenn.cogar

glenn.cogar — over 1 year ago

Thanks for creating this Derek :)

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