# Data arrangement, storage and relationship based on other packages

**Category:** [Technical (archive)](https://discourse.openehr.org/c/technical-archive/156)
**Created:** 2008-05-28 04:31 UTC
**Views:** 5
**Replies:** 0
**URL:** https://discourse.openehr.org/t/data-arrangement-storage-and-relationship-based-on-other-packages/12298

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## Post #1 by @Babak_Fathi

Hi
The published  archetypes  and difinition of table arrangement in the form
of  EAV model \(like  quary map and archetype profile\)  were so helpful among
openEHR documents\.As a result we have no problem in understanding  clinical
data storage and quarying in a dual model\. However, it is difficult to
interprete the other packages\. So, I have some questions about these
packages:
1\- Are there any archetypes based on other packages, \(not only EHR package,
eg\. demographic and common packages\)?
2\- Are the data belonging to each package, stores in a different table
\(other than clinical data table\)?
3\- How the relation between this separate packages is defined in database,
Is "quary map table" be the connection between them?

Best Regards

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