Anchor Modeling

Anchor Modeling is an open source database modeling technique built on the premise that the environment surrounding a data warehouse is in constant change. It provides a graphical notation used for conceptual modeling similar to that of entity-relationship modeling, with extensions for working with temporal data.

Supported databases:

You can find Anchor Modeling in these categories:

Anchor Modeling in Database design tools

http://www.anchormodeling.com/

Anchor Modeling is an agile database modeling technique suited for information that changes over time both in structure and content. It provides a graphical notation used for conceptual modeling similar to that of entity-relationship modeling, with extensions for working with temporal data.