On 03/12/2010 21:01, David Moner wrote: > >> #3. The templates you use should only restrict data entry. It should >> not filter existing data of the same structure. If it does; there goes >> interoperability. Along with the entire premise for the use of and >> purpose of archetypes. > Interesting... If templates are only used for data entry and not for > data reading and revision that should be stated clearly for all > developers, since I think it is not said anywhere at the > specifications, the web or the wiki. Every developer should know that > (coming back to the topic of this thread) if they hand-code a > visualization template all that work is only useful for the data > generated at their own system and not for the data from an external > one, even if it is using the same archetypes.
the general idea has always been that data can always be interpreted by a receiver using just the archetypes declared in the data. I believe this will continue to be a reliable assumption into the future. However, with the new style templates, which are essentially just archetypes, it may be that templates will be shared quite often as well, since the computing machinery that can deal with archetypes will be able to deal with ADL 1.5 templates as well (with only very minor upgrades from today, since we are talking about operational templates, which are essentially big archetypes). This is not going to add much information, since the information structures themselves (i.e. the compositional hierarchy of Composition, Sections, Entries etc) will reflect the structure of the template that was used. But if the receiver wants to validate the received data against the template, which is likely to include a) numerous removed optional items and b) further constrained coded text fields, then it will need the template. Note that the data as received must be definition already be valid with respect to the implicated archetypes, and if the receiver is interested in what the template says, then it means they probably have some agreement with the sender institution about using their templates. This will almost certainly happen with nationally standardised templates for referrals, discharge summaries and so on. In summary: displaying and using the data with just the archetypes used to build it will be fine, since the data will reflect accurately the removed optional items, reduced terminology choices etc. Any site wanting to do processing against the template will undoubtedly be in some kind of communication with the publisher of the template. - thomas * * -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.openehr.org/mailman/private/openehr-technical_lists.openehr.org/attachments/20101203/35747363/attachment.html>
