# Specifications for the FLAT paths

**URL:** <https://discourse.openehr.org/t/specifications-for-the-flat-paths/5139>\
**Category:** ITS\
**Tags:** flat\
**Created:** [25 April 2024 12:02 UTC](https://discourse.openehr.org/t/specifications-for-the-flat-paths/5139 "2024-04-25T12:02:32Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![borut.jures](https://discourse.openehr.org/user_avatar/discourse.openehr.org/borut.jures/32/1391_2.png) [@borut.jures](https://discourse.openehr.org/u/borut.jures)\
**Post date:** [25 April 2024 12:02 UTC](https://discourse.openehr.org/t/specifications-for-the-flat-paths/5139/1 "2024-04-25T12:02:32Z")

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I’m implementing [GitHub - better-care/fhir-connect-mapping-spec](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):

```auto
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: [openEHR Simplified Information Model 'B'](https://specifications.openehr.org/releases/SM/latest/simplified_im_b.html#_transformation_rules)
- and an algorithm: [Simplified Data Template (SDT)](https://specifications.openehr.org/releases/ITS-REST/latest/simplified_data_template.html#_sopt_generation)

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**Author:** ![ian.mcnicoll](https://discourse.openehr.org/user_avatar/discourse.openehr.org/ian.mcnicoll/32/4430_2.png) [@ian.mcnicoll](https://discourse.openehr.org/u/ian.mcnicoll)\
**Post date:** [26 April 2024 06:47 UTC](https://discourse.openehr.org/t/specifications-for-the-flat-paths/5139/2 "2024-04-26T06:47:52Z")

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Best to consult the source

[GitHub - better-care/web-template: WebTemplate implementation for openEHR CDR](https://github.com/better-care/web-template) and

> **[openEHR\_SDK/web-template at develop · ehrbase/openEHR\_SDK](https://github.com/ehrbase/openEHR_SDK/tree/develop/web-template)**
>
> A SDK to facilitate the development of openEHR applications - ehrbase/openEHR\_SDK