Yes, Observer Dimension and Provider Dimension are synonymous, in my understanding.
On slide 5, the concept_cds are all the same because it's just one observation_fact we're looking at. Rather than "combining terms into single concepts" I'd say we're relating one concept_cd to multiple concept paths, which is fairly normal in i2b2. I'm not sure I can explain this in email. It might need a shared screen or face-to-face time at a whiteboard. 17 isn't a count of instances; it's just an identifier/key for an instance. Thanks for the review comments! p.s. Please excuse top-posting<http://en.wikipedia.org/wiki/Posting_style#Top-posting>. I'd rather put my answers with the respective question, but Outlook is the only mailer KUMC supports. Sigh. ________________________________ From: Greater Plains Collaborative Software Development [[email protected]] on behalf of Wilson Nathan [[email protected]] Sent: Wednesday, January 15, 2014 4:37 PM To: [email protected] Subject: PCORI Information Model Comments/Questions I understand that PCORI/GPC Standard Data Model<https://docs.google.com/presentation/d/1sre0KAUOG_FtSioecLhr2SBHcdd8tZQzuaKGBmtVHWs/edit?usp=sharing> is a work in progress, but I do have a few questions about the content in a few of the slides. Slide 2: * Should the Observer Dimension actually be Provider Dimension? I looked into the i2b2 documentation and it looks like Observer Dimension is from an earlier version of i2b2 Slide 5: * Why are the CONCEPT_CDs the same for each of the concept paths? It appears that you are attempting to combine equivalent terms/codes into single concepts (similar to the UMLS), but is that the best solution here? It works for the slide because each of the underlying terms/codes have a 1 to 1 relationship to each other, but how are we planning on addressing many to 1 and 1 to many instances of terms/codes that can and will combine to form a single concept? Slide 7: * Why are there 17 instances for each row? My understanding of how INSTANCE_NUM is used, is to identify each unique instance of a row as defined by its ENCOUNTER_NUM, PATIENT_NUM, CONCEPT_CD, PROVIDER_ID, and MODIFIER_CD values. Since the MODIFIER_CDs are different in each row shouldn't the INSTANCE_NUM be 1. 17 indicates that the data is duplicated 17 times. Nathan S. Wilson Ontologist Health Information Management Center (HIMC) ______________________________________________________________________________________________________ 301 S. Westfield Rd - Suite 320 Madison, WI 53717 Phone: (608) 890-5780 eMail: [email protected]
