> For the complete documentation index, see [llms.txt](https://community-test.logicnets.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://community-test.logicnets.com/release-9/platform-documentation/other-help-articles/data-models-in-libraries.md).

# Data Models in Libraries

It possible to define an explicit data model in a library package and use that data model in the projects that included the library package. First you must create the data models and data objects in the data models in your library project.

![](https://2802811211-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FdFhfexCjZ5JMhwGzzywq%2Fuploads%2Fgit-blob-a68915b7a5fcaeed560584b93a74001930703447%2F2262870a-4605-403c-8e14-32be04303837.png?alt=media)

Then you publish your library and include the published library in your other project (see above).

Now you can go to the *Data* tab of one of your logicnets. If you open the dropdown you will see all of the data models defined in your current project and all of the data models defined in the included library packages. The name of the library alias is between brackets behind the data model name.

![](https://2802811211-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FdFhfexCjZ5JMhwGzzywq%2Fuploads%2Fgit-blob-05f902939c247869a5f0457cdb7b24886eb608ba%2F471db61d-132f-4bdc-aa62-37f1fee60ea0.png?alt=media)

You can sync the data objects between the linked-library data models and the data objects defined in the logicnets. The sync will only go one way. It is not prohibited to update or add data objects in the linked library packages.


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