Simplify Graphic Referencing
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|Submitted by: Rick Geimer||Revision date: 2010-05-05|
|Submitted date: 2010-05-05||Change request ID: <<Change Request ID>>|
The method for adding external graphics to CDA documents is quite cumbersome for cases where a user just wants to add an image without defining participants, etc. It is necessary to define an observationMedia element, which is then referenced from the narrative block as follows:
<text>Erythematous rash, palmar surface, left index finger. <renderMultiMedia referencedObject="MM1"/> </text> <entry> <observationMedia classCode="OBS" moodCode="EVN"> <value mediaType="image/gif"> <reference value="lefthand.gif"/> </value> </observationMedia> </entry>
This is a lot of overhead to just reference a graphic. Also, it requires that all documents containing graphics are, by definition, "level 3" CDA documents (any document with entries is a level 3 document).
- Allow direct referencing of external graphics in the renderMultiMedia element as follows:
<renderMultiMedia mediaType="image/gif" value="lefthand.gif"/>
Note: this is not intended as a replacement for observationMedia in cases where participants and other info need to be associated with a graphic. Rather, it provides a shortcut for the simplest case where a user just wishes to reference a graphic, much as they would in HTML.
Recommended Action Items
July 22: Close this one, as it is subsumed by the XHTML proposal.