# Where are the archetypes for data validation located?

**Category:** [Platform](https://discourse.openehr.org/c/platform-implem/7)
**Created:** 2024-09-02 09:02 UTC
**Views:** 62
**Replies:** 2
**URL:** https://discourse.openehr.org/t/where-are-the-archetypes-for-data-validation-located/5644

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## Post #1 by @linforest

For EHRBase, where are the archetypes on which the data validation is based actually located?

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## Post #2 by @stefanspiska

When you export a template into a OPT the information from the archetypes in written into it and that is what  ehrbase or any other openehr system uses for validation.

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## Post #3 by @linforest

I see. Thanks a lot, @stefanspiska.

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**Canonical:** https://discourse.openehr.org/t/where-are-the-archetypes-for-data-validation-located/5644
**Original content:** https://discourse.openehr.org/t/where-are-the-archetypes-for-data-validation-located/5644