The Common Data Model is an open-source data model on GitHub (see https://github.com/Microsoft/CDM) with a set of standardized schemas that can be used by systems to ensure consistency and interoperability of data across systems.
To find out more about the Common Data Model, read https://docs.microsoft.com/common-data-model/.
Microsoft is expanding the schemas in the Common Data Model to include industry accelerators such as healthcare and manufacturing.
Microsoft is enabling AI within Dynamics 365 first-party apps and is now making AI available to the Power Platform for you to include AI in your own apps and processes.