Interoperability is the ability of health information systems to exchange information in a form that can be used meaningfully. For nursing, a successful transfer involves more than moving a document: the receiving team needs to understand what was observed, when, by whom, and under what conditions.
A system can exchange a file while still leaving important nursing information difficult to find or interpret. Evaluating interoperability therefore requires a clinical task as well as a technical connection.
Preserve structure and meaning
The SAFER system-management guide recommends standardized exchange protocols and clinical terminologies, with documented specifications for data sent and received. These specifications describe what an interface carries, how the data are used and stored, and who maintains the connection.
A receiving system needs to know what a result represents. In HL7’s FHIR Release 4 standard, the observation code identifies what was observed, and the value records the result. A quantity can carry a unit with its numeric value. A numerical result without its units or assessment context can lose meaning even if the number transfers correctly.
Not every useful piece of nursing information fits a single structured field. Narrative context can remain important. The design question is how to retain it without making essential details invisible inside a long document.
Ask a clinical question of the interface
Before testing a connection, identify what the receiving nurse needs to do. Can the nurse distinguish a current observation from a historical one? Can the record show whether an intervention was planned or performed? Can the nurse find the source of a value that conflicts with the local record?
Those questions help define test cases. Include changed values, missing information, corrected entries, and transfers between settings. The SAFER guide recommends interface testing before and after implementation and following updates to protect data integrity.
Illustrative interoperability failure
In an illustrative device interface test, a measurement reaches the EHR, but the receiving display labels it with the arrival time rather than clearly showing the measurement time. During a delayed transmission, the value could appear newer than it is.
The technical transfer succeeded, yet the presentation could mislead a clinician. The team tests how event time and receipt time are represented and agrees on a display that preserves the distinction. This is an example for evaluation, not a claim about a particular device or EHR.
Keep responsibility visible
Connections need owners on both sides. When a field disappears after an update, bedside staff need a route to report the problem and a temporary method for obtaining essential information. A silent interface failure can be harder to recognize than an unavailable system.
A local evaluation can examine missing values, mismatched units, delayed messages, and the effort required to reconcile incoming information. Record the systems and versions involved so that a later update does not invalidate the findings unnoticed.
For a closer look at what can change when a coded assessment is transferred, see standardized nursing terminologies.
Related
Standardized Nursing Terminologies in EHRs
Sources
- SAFER: System Management (accessed 2026-09-17).
- ONC: About Health Information Exchange (accessed 2026-09-17).
- HL7: FHIR Release 4 Observation (accessed 2026-11-11).