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The software also allows users to generate data models by reverse-engineering pre-existing databases that are based on several different formats.<ref>{{Cite web|url=https://visualstudiomagazine.com/articles/2010/12/01/designing-databases-with-erwin-data-modeler-7.3.aspx|title=Designing Databases with ERwin Data Modeler 7.3|last=Vogel|first=Peter|date=2010-12-01|website=Visual Studio Magazine|language=en|access-date=2017-10-02}}</ref> Another included feature is erwin’s ability to create reusable design standards: “including naming standards, data type standards, model templates and more.” The software includes several features for modifying how the data model is displayed, including options for several colors, fonts, diagrams, subject areas and layouts.{{Sfn|Burbank|2011|p=38-39}}
erwin’s Complete Compare feature allows the user to compare two versions of a model, displays differences, and allows for merging and updates in either direction.{{Sfn|Burbank|2011|p=38}} As of March 2016, the software bundle also includes its own Report Designer.<ref name=":3" /> The erwin DM 2018 update included Netezza, MySQL 8.x, PostgreSQL 10.4, and Hive; model counts reports; and PII support. The 2019 update included DB2 z/OS v12, SQL Server 2017, Teradata v16.20, and PostgreSQL 11.2, in addition to reporting enhancements like user-defined properties and filters.<ref>https://www.softwaretestinghelp.com/data-modeling-tools/</ref>
== Release history ==
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