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<html><head><title></title></head><body>* Dealing with temporal data

    • obs.obs_datetime should contain the date that the observation occurred — e.g., the time when the observation was actually "observed"
    • obs.value_datetime is used for dates as an answer to a date-related concept
  • Can obs have answers that are coded and free text
    • use two concepts ("OTHER" as an answer to the original question and another concept to supply the free text answer)
  • Vibha's topics
  • Sunsetting obs.value_boolean
  • Scaling up
    • Ideally, each site installing an implementation of OpenMRS in a developing country should be working with a team in a developed country


  • PIH to come up with example use cases where we might need observation start date & duration