The HIDDEL vocabulary ("Health Informtation
Disclosure, Describtion and Evaluation Language") is based on MedPICS("Medical Platform for
Internet Content Selection), which is a further development of PICS. PICS has been
developed by the World Wide Web Consortium (W3C) as a
technical standard so that people can electronically distribute descriptions of digital works in a
simple, computer-readable form.
HIDDEL in its first version was initially developed during the
MedCERTAIN project, a joint project of the University of Heidelberg,
Germany, the ILRT and FINOHTA, co-funded under the European Union's (EU)
"Action Plan for safer use of the Internet" from 5/2000 until 02/2002. It
will be further refined and expanded during the MedCIRCLE project.
The metadata vocabulary
consists of elements, which may be presented as a taxonomy (tree structure,
see Figure below):
To explore all elements,
for basic elements are Infoprovider_feedback_email_technical (containing
the email address for technical questions) or Infoprovider_feedback_email_content
(for content questions).
basic element can in principle be combined with one of 9 sub-elements,
for example CHECKED (What is the result of the evaluator verifying
the element?), CHECKED_REASON (Explanation for CHECKED),
HOW (Description of how users can identify the basic element on
the page(s) themselves).
provider can for example combine the basic element Infoprovider_feedback_email_content
with the subelement HOW and describe in this element "The feedback
email is provided at the bottom of each page". A third-party evaluator
could use the subelement CHECKED to confirm this, or to express
disagreement. For many (basic) elements, a controlled vocabulary exists
to complement the free text value, in this case, elements end with "_CV".
further can have attributes, giving additional information about the elements,
for example who entered them and when.
the health information provider could publish on his webpage the following
statements indicating his address and the email which should be used for
<adress> Bergheimer Str. 58, 69115 Heidelberg </adress>
services or gateways could publish a XML statement as the following:
<adress> Bergheimer Str. 58, 69115 Heidelberg
(Last update: 2002-07-03)