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VMR Progress

VMR Progress. HL7 Baltimore October 2002. Points from May HL7. Need to distinguish Orders from Events Coping with Aggregate terms VMR as part of an API Alerts/triggers. With subclasses. R-MIM Changes: Order vs. Event. All Interventions now have three possible mood codes

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VMR Progress

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  1. VMR Progress HL7 Baltimore October 2002

  2. Points from May HL7 • Need to distinguish Orders from Events • Coping with Aggregate terms • VMR as part of an API • Alerts/triggers

  3. With subclasses

  4. R-MIM Changes: Order vs. Event • All Interventions now have three possible mood codes • INT – intent (for use in a plan) • ORD – order; not yet happened • EVN – event; record of it having happened

  5. Changes: Aggregates • Aggregate terms • E.g. Blood Pressure • Systolic • Diastolic • Observations can now be components of other observations. • Uses an act_relationship, type_cd COMP • OR we can do with Aggregate object • Discuss…

  6. Changes: Plans • Added • Relationship to Interventions • Relationship to Goals

  7. Changes: Intervention • Health Care intervention • Base class of all actions in UML diagram • Needed to specify services carried out for patients – e.g. ‘Annual Diabetic Review’ • This was in UML diagrams, but omitted from R-MIM in May

  8. Changes: Reasons • Reason for encounter • Reason for appointment • Reason for referral • -all of these are act_relationship to one of the choices

  9. API expression • VMR describes • classes used in an API • Attributes of the classes • Not the methods • API needs • Queries on real clinical system • Writes/updates on clinical system • Action requests to clinical system • Registration for trigger notification • Notification of events/triggers from clinical system

  10. DSS KB Has expressions using VMR terms CDSS module Queries Writes/updates Action requests Trigger requests Trigger events API - uses VMR objects/attributes/terms Terminology Mediation KB VMR <> host Clinical system adaptor Clinical System

  11. API parts • Queries, writes, updates • e.g. ‘haemoglobin values in past month’ • Return set of observations • Can be done as XML messages from R-MIM – use for loosely coupled systems • Can be done in OO IDL - useful for close coupled systems

  12. IDL definition of API

  13. Host System Services Carrying out action requests create a new action on host system record it as side effect

  14. Host System Services: Triggers

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