Overview
The last tutorial showed how archetypes can hold data for persistence and reuse with some GLIF. While this is effective, an alternative approach is to use patient states as intermediate state objects. In other words the patient state can hold a value which is then accessible to GELLO, within the GLIF application. This approach avoids encroaching on GELLO immutablity upon the EHR, which could technically be an issue when using archetypes (archetypes can be thought of as being part of the information model; and a tenet of GELLO is that it is side effect free). This tutorial will show a couple of examples of this use including GELLO for patient states. It finishes with showing GELLO for Sync nodes as alluded to in an earlier tutorial.
Patient states as intermediate state objects