# Specifications for the FLAT paths

**Category:** [ITS](https://discourse.openehr.org/c/its/41)
**Created:** 2024-04-25 12:02 UTC
**Views:** 195
**Replies:** 1
**URL:** https://discourse.openehr.org/t/specifications-for-the-flat-paths/5139

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## Post #1 by @borut.jures

I'm implementing https://github.com/better-care/fhir-connect-mapping-spec

It uses [simplified FLAT paths](https://github.com/better-care/fhir-connect-mapping-spec?tab=readme-ov-file#paths):

```
openEHR: Custom path, derived by simplifying the FLAT format and using the common separator (`.`)

* Example: `"$openEhrArchetype.blood_pressure.any_event.systolic"`
```

It is the first time I'm using FLAT paths and I'm learning how they are prepared:

- is this the used specification: https://specifications.openehr.org/releases/SM/latest/simplified_im_b.html#_transformation_rules 
- and an algorithm: https://specifications.openehr.org/releases/ITS-REST/latest/simplified_data_template.html#_sopt_generation

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## Post #2 by @ian.mcnicoll

Best to consult the source 

https://github.com/better-care/web-template and 

https://github.com/ehrbase/openEHR_SDK/tree/develop/web-template

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**Canonical:** https://discourse.openehr.org/t/specifications-for-the-flat-paths/5139
**Original content:** https://discourse.openehr.org/t/specifications-for-the-flat-paths/5139