# OpenEHR: PhD Case Study

**URL:** <https://discourse.openehr.org/t/openehr-phd-case-study/14865>\
**Category:** Implementers (archive)\
**Created:** [29 January 2009 08:33 UTC](https://discourse.openehr.org/t/openehr-phd-case-study/14865 "2009-01-29T08:33:03Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![Brian\_Shields](https://discourse.openehr.org/letter_avatar_proxy/v4/letter/b/c4cdca/32.png) [@Brian\_Shields](https://discourse.openehr.org/u/Brian_Shields)\
**Post date:** [29 January 2009 08:33 UTC](https://discourse.openehr.org/t/openehr-phd-case-study/14865/1 "2009-01-29T08:33:03Z")

</div>

> All,  
>   
> I am in the final stages of a PhD in Applied Information Security and am investigating different options for demonstrating my research offering. I have had a interest in Medical Informatics, in particular EHR’s, for some time now. To give you a very brief synopsis of my research: I have developed an abstract access control module which uses logic (OWL + Rules) to determine access to protected information. I then use the decision results to expose or hide relevant portions of a semi-structured document (in this case XML).  
>   
>   
>   
>   
>   
>   
>   
>   
> I am asking for some help in the form of direction from this group if that is possible. What I am ideally searching for as a case study is an academic and industry backed EHR. OpenEHR clearly satisfies this requirement. What I need for the case study is an XML document containing information which can be semantically described (in my case using OWL). From initial examination of OpenEHR, this is all possible. I realise that there are complexities to OpenEHR that are far beyond the scope of what I need. My attention was drawn to the “Top-Level Information Structures” like EHR, EHR-Extract, demographic etc. and the fact that these could be used as separate documents in a document oriented system.  
>   
>   
>   
>   
>   
>   
>   
> Is there a sample XML Schema and corresponding instance file available for any of these Top-Level Information Structures? If so, can you direct me to their location? If I have posted to the incorrect group here, can you point me in the right direction to the group of people who may be able to help?  
>   
>   
>   
>   
>   
>   
>   
>   
> I would really appreciate any help you can offer me on this.  
>   
>   
>   
>   
>   
>   
>   
>   
> Kind regards,  
>   
> Brian. |

---

<div class="post-metadata">

**Author:** ![Kisling\_Jeffrey\_A](https://discourse.openehr.org/letter_avatar_proxy/v4/letter/k/c68b51/32.png) [@Kisling\_Jeffrey\_A](https://discourse.openehr.org/u/Kisling_Jeffrey_A)\
**Post date:** [29 January 2009 13:50 UTC](https://discourse.openehr.org/t/openehr-phd-case-study/14865/2 "2009-01-29T13:50:22Z")

</div>

Brian,

I am a relative newcomer to openEHR, so you’ll probably get a better answer from others.

I am aware of schemas at the following address that might be part of what you need:

[http://www.openehr.org/releases/1.0.2/its/XML-schema/index.html](http://www.openehr.org/releases/1.0.2/its/XML-schema/index.html)

Jeff

---

<div class="post-metadata">

**Author:** ![system](https://discourse.openehr.org/uploads/default/original/2X/f/f0a1dedb20c42747bddcafd6c7df9db5f34f003c.svg) [@system](https://discourse.openehr.org/u/system)\
**Post date:** [1 February 2009 20:44 UTC](https://discourse.openehr.org/t/openehr-phd-case-study/14865/3 "2009-02-01T20:44:59Z")

</div>

Ocean will provide an instance or two. Will email you off line.

Cheers, Sam