Integration
Decide what the application owns before you write anything
The single decision that determines whether an application ages well is the data boundary. What it genuinely owns, what it reads from elsewhere, and what it must write back.
A stated system of record boundary
Written down before build, covering every entity the application touches, with anything held locally justified rather than assumed.
Identity resolved properly
Patient, provider and encounter matched with defined behaviour when confidence is insufficient.
Built on governed data
Reporting and analytics drawn from the certified data platform rather than from the application database.
Write-back into the record
Clinically or operationally meaningful activity captured through the normal workflow, so nothing important lives only in the application.
Context passed on launch
Where the application launches from the EHR, patient and encounter context carried across so the user does not re-select what the system already knows.
Upgrade regression as standard
Automated testing against EHR and platform release cycles, since applications break through changes nobody made to them.
Every write needs a return path.
Was it accepted, was it processed, did the authoritative state actually change, can the application confirm it, and what happens if it did not. A successful API response is not a completed healthcare workflow.
Was it accepted, was it processed, did the authoritative state actually change, can the application confirm it, and what happens if it did not. A successful API response is not a completed healthcare workflow.
