Observational Health Data Sciences and Informatics

initial notes and ideas.

1. use cases:
   1. source(s) to target(s):
      1. find mapped or matching codes, classification or standard
      2. in target code(s) selected, see which source codes are added or left out and counts of corresponding patient records
   2. explore the whole set of OHDSI vocabularies:
      1. in general
      2. only for concepts in user's CDM
      3. for a specific domain:
         1. e.g., provider specialty, show record counts for all values including zero counts for specialties not used; maybe also show corresponding source values and source values that weren't able to be mapped to a target. (provider.specialty_concept_id, provider.specialty_source_value, provider.specialty_source_concept_id, care_site.specialty_concept_id, care_site.specialty_source_value)
      4. to better understand relationships between source and target domains
      5. to better understand classifications available
   3. find a concept:
      1. have immediate feedback on CDM records with concept
      2. see relationships to other concepts and be encouraged to assure one has chosen correctly
   4. define a cohort or phenotype:
      1. translate existing phenotype definition (e.g., set of ICD-9 codes for some condition) from a source vocabulary into a target vocabulary
   5. explore my popupaltion:
      1. overall
      2. in terms of some domain
      3. defining a subpopulation (same as 1)
      4. intersecion of subpopulations
   6. Patrick's SNOMED navigation strategy:
      1. using related concepts filter on Class, choose Has ancestor of from Relationship facet, filter on Distance facet
2. notes and to-dos:
   1. other systems to get ideas from:
      1. http://outins.com/
      2. http://jigsaw.io/
      3. http://www.ephir.com/
      4. http://www.aviz.fr/Research/Nodetrix
   2. javascript libraries to consider using:
      1. https://www.golden-layout.com/examples/
   3. to-dos:
      1. integrate ERD maybe:
         1. http://www.ohdsi.org/web/wiki/lib/exe/fetch.php?media=documentation:omop_cdm_v5_erd.pdfkjjjjjjj
      2. source record count:
         1. show these as existing in cdm but not available through query
         2. also show ancestor concepts with their descendant record counts
         3. only show classification concepts that have a descendant record count
      3. default to showing 4 main domains (condition, drug, procedure, measurement)