Changes between Version 9 and Version 10 of LEGACY - i2b2 - The algorithms applied to importing a PDO

Timestamp:

12/29/11 10:35:22 (13 years ago)

Author:

jeff.lusted

Comment:

--

LEGACY - i2b2 - The algorithms applied to importing a PDO

@@ -52 +52 @@
 </pdo:patient_data>
 }}}
+
+=== Order of Processing ===
+The loader processes the PDO in the order displayed in the above XML skeleton; ie:
+
+ 1. pid_set
+ 1. eid_set
+ 1. patient_set
+ 1. event_set
+ 1. concept_set
+ 1. observer_set
+ 1. observation_set
+
+There are two observations I think need to be made about this:
+
+ * I believe that processing the pid_set and eid_set first in the work flow allows the loader to be in control in assigning i2b2 internal identifiers to patients and to events. That is: there is no need for i2b2 internal id's to somehow be manufactured and placed in the PDO '''''beforehand'''''. The source and source identifiers (eg: BRICCS participant id and s-number) can be used as patient identifiers and the loader will take care of assigning internal ids and mapping them to the external source ids. This is a big gain: the process is transactional, it is database independent and there are no problems with concurrency.