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release_notes_1.0.htm
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html lang="en">
<head>
<meta content="text/html;charset=ISO-8859-1" http-equiv="Content-Type" />
<title>Release 1.0 - Release notes</title>
<link rel="stylesheet" href="http://www.openehr.org/styles/oe.css" type="text/css" />
</head>
<body>
<h1><span style="font-style: italic;">open</span>EHR
Specification Project<br />
Release 1.0 - "Reference Model"<br />
<span style="color: rgb(153, 51, 153);">Release Notes</span>
</h1>
<hr style="width: 100%; height: 2px;" />
<h2>Overview</h2>
This publication constitutes Release 1.0 of the <span style="font-style: italic;">open</span>EHR
specification project, also known as the "reference model" release. The
release has benefited from 3 years of use of earlier releases of the
specifications, including significant implementations. The primary aim
of Release 1.0 is to provide the <span style="text-decoration: underline;">definitive stable statement of the
reference model</span>. From the point of view of software developers, Release
1.0 is a stable set of specifications for software development
into the future. Due to the separation of the reference model
from archetypes in <span style="font-style: italic;">open</span>EHR,
we expect that the reference model will indeed remain extremely stable
from this point on, since all clinical and other domain specific
semantics are modelled within archetypes, templates and terminology.
Various change management rules will now come into effect (see below) in order to
minimise the effect of changes, and to enable the widest possible
community input.<br />
<h2>Public Comment Period</h2>
There will be a 3 month public comment period from early February 2006 when
Release 1.0 is published. During this period, the specifications will
be marked as being for public comment. There is in fact nothing
different about this period - all of the release and change management
rules
described below apply from 01/Feb/2006. However, the front cover of
each document will be marked as being in the "public comment" period,
to a) encourage scrutiny during this period, and b) to differentiate
the documents from the form that will be published on 1 May 2006. The
main reason for the public comment period is to give the <span style="font-style: italic;">open</span>EHR
community a chance to find errors in the documents, and to ask for
improvements to explanatory text and diagrams. After this period, all
input continues to be welcomed as per the normal process.<br />
<br />
Feedback should generally be made via the openEHR Technical mailing list ([email protected]; subscribe <a href="http://www.openehr.org/advice/contents.html">here</a>).<br />
<h3>Is the Release safe to use during this period?</h3>
Yes. From the release date, the only things that will change are a) errors in the models will be corrected and
b) explanatory text improved. This is no different from the change management situation going into
the future. The only difference between the documents during and after
the public comment period is that the "public comment" marker
will be removed from the front page graphic on 1 May.
<h2>Functional Improvements in this Release</h2>
The following is a list of major improvements in Release 1.0 over previous releases:<br />
<ul>
<li>signficant refactoring of models to promote re-use both
in the specifications and in software (the Common IM contains most
re-usable patterns)</li>
<li>major improvements to ENTRY types, based on a "scientific
investigator" model; there are now 5 ENTRY subtypes: OBSERVATION,
EVALUATION, INSTRUCTION, ACTION and ADMIN_ENTRY</li>
<li>support for archetyping and automated workflows in the INSTRUCTION and ACTION types</li>
<li>vastly improved model of HISTORY / EVENT, supporting point and
interval events, overlapping events, and "math function" data, i.e.
mean, max, min, change etc;</li>
<li>redeveloped model of PARTY references from the EHR, supporting anonymous and transparent reference to the patient</li>
<li>redeveloped model of audits and attestations</li>
<li>enhanced model of versioning and version identification</li>
<li>redeveloped specification for paths and URIs, compatible with Xpath</li>
<li>improved syntax for archetypes, known as ADL2, which is extensible and convertible in and out of XML</li>
<li>various minor improvements due to implementation experience.</li>
</ul>
During the work on this release, over 50 CRs were processed, with some 40 being implemented. The <a href="history.htm">Change History</a> lists CRs that have been implemented in each release. Changes slated for the future are indicated in the <a href="todo.htm">To Do list</a>.
<h2>Obtaining the Release Materials</h2>
You can access all deliverables in the release from the <a href="publishing/index.html">roadmap</a> page, just by clicking on links. To get the entire release as a web tree, follow the <a href="project_page.htm#How_To">instructions</a> on how to use Subversion to do this.
<h2>What is the status of specifications in this Release?</h2>
Almost all of the specifications are in their intended state in this
release. Work remains on a couple, and there are still of course more
change requests (CRs) to process for future releases. The table below
indicates the status of deliverables as of this release. See the <a href="publishing/index.html">roadmap</a> for the descriptions of deliverables.<br />
<br />
<table style="text-align: left; width: 80%;" border="1" cellpadding="2" cellspacing="2">
<tbody>
<tr>
<td style="background-color: rgb(255, 255, 102);">
<h2>Deliverable</h2>
</td>
<td style="background-color: rgb(255, 255, 102); width: 36px;">
<h2>Status</h2>
</td>
<td style="background-color: rgb(255, 255, 102);">
<h2>Comments</h2>
</td>
</tr>
<tr>
<td style="background-color: rgb(255, 255, 153);">
<h3>General</h3>
</td>
<td style="background-color: rgb(255, 255, 153); width: 36px;"></td>
<td style="background-color: rgb(255, 255, 153);"></td>
</tr>
<tr>
<td style="background-color: rgb(255, 255, 204); color: rgb(0, 0, 153);">Introducing openEHR</td>
<td style="background-color: rgb(255, 255, 204); font-weight: bold; color: rgb(0, 153, 0); width: 36px;">Stable</td>
<td style="background-color: rgb(255, 255, 204);"></td>
</tr>
<tr>
<td style="background-color: rgb(255, 255, 204); color: rgb(0, 0, 153);">CM Plan</td>
<td style="background-color: rgb(255, 255, 204); font-weight: bold; color: rgb(0, 153, 0); width: 36px;">Stable</td>
<td style="background-color: rgb(255, 255, 204);"></td>
</tr>
<tr>
<td style="background-color: rgb(255, 255, 153);">
<h3>Requirements</h3>
</td>
<td style="background-color: rgb(255, 255, 153); width: 36px;"></td>
<td style="background-color: rgb(255, 255, 153);"></td>
</tr>
<tr>
<td style="background-color: rgb(255, 255, 204); color: rgb(0, 0, 153);">ISO TS 18308 Conformance</td>
<td style="background-color: rgb(255, 255, 204); color: rgb(0, 153, 0); font-weight: bold; width: 36px;">Stable</td>
<td style="background-color: rgb(255, 255, 204);"><br />
</td>
</tr>
<tr>
<td style="background-color: rgb(255, 255, 153);">
<h3>Architecture</h3>
</td>
<td style="background-color: rgb(255, 255, 153); width: 36px;"></td>
<td style="background-color: rgb(255, 255, 153);"></td>
</tr>
<tr>
<td style="background-color: rgb(255, 255, 204); color: rgb(0, 0, 153);">Architecture Overview</td>
<td style="background-color: rgb(255, 255, 204); color: rgb(0, 153, 0); font-weight: bold; width: 36px;">Stable</td>
<td style="background-color: rgb(255, 255, 204);">This is a new
document containing some content from the old "roadmap" document as
well as new content describing the key semantics of the <span style="font-style: italic;">open</span>EHR reference model.</td>
</tr>
<tr>
<td style="background-color: rgb(255, 255, 204); color: rgb(0, 0, 153);">Modelling Guide</td>