Entity Relationship Diagrams for AtoM

From AtoM wiki

Main Page > Development > Development/ERDs

This page contains downloadable versions of Entity Relationship diagrams that have been generated over time from AtoM's relational database. An ER diagram is a specialized type of illustration that can be used to express the entities, attributes, and relationships comprising a relational database.

With each major release of AtoM, the database is likely to change. Here we will add historical and (as we are able) current versions of the ER diagrams from AtoM to assist new developers in understanding how AtoM is structured.


These diagrams have often been generated by developers during the development process - that is, between stable releases. Note that they are not definitive, and the database schema may be different in the subsequent version.

January 2011

January 2011 version of ICA-AtoM ERD (circa Release 1.2)

ICA-AtoM ERD from 2011-01


2012 version of ICA-AtoM ERD (circa Release 1.3)

ICA-AtoM ERD from 2012

March 2014

2014-03-26 version of AtoM ERD (circa Release 2.0)

AtoM ERD from 2014-03-26

2014-03-26 alternative version of AtoM ERD (circa Release 2.0)

Alternative AtoM ERD from 2014-03-26

January 2016

2016-01-04 version of AtoM ERD (circa Release 2.2)

AtoM ERD from 2016-01-04

January 2017

2017-01-04 version of AtoM ERD (circa Release 2.3)

AtoM ERD from 2017-01-04

November 2018

2018-11-15 version of AtoM ERD (from qa/2.5.x)

AtoM ERD from 2018-11-15

January 2020

2020-01-24 version of AtoM ERD (from qa/2.6.x)

AtoM ERD from 2020-01-24