Vital Signs Cross-Country Cross-Language Cross-Paradigm (Demo) IG
0.6.7 - ci-build
Vital Signs Cross-Country Cross-Language Cross-Paradigm (Demo) IG
0.6.7 - ci-build
Vital Signs Cross-Country Cross-Language Cross-Paradigm (Demo) IG, published by FO. This guide is not an authorized publication; it is the continuous build for version 0.6.7 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/frankoemig/vital-signs-demo/ and changes regularly. See the Directory of published versions
Currently we have a two level hierarchy: A base profile describes the relevant attributes including what must be supported. But that leads to a lot conditions because not always all details can be provided. Another difficulty arises if vendors want to implement a subset from this guide. Then the must-support flag leads to a lot of confusion:
That introduces a huge burden on the developer to identify what he needs to do.
A possible way out is to create a three-level profile hierarchy that separates requirements depending on the more detailed specialisation for a specific vital sign element:
On the one hand, we have to describe which attributes are relevant. That includes also the associated obligations. On the other hand, some details are specific to the related content profiles like blood pressure. That differs for example by the fields that must be supported, eg. a single value for body weight, whereas blood pressure requires two components instead.
Another aspect is a specification what kind of obligation is associated. For example, units for measurements can be handled in form of an equivalent, so that internally it can be converted back and forth into/from an internal representation. But the measured values must be handled exactly.
In the previous section obligations are mentioned with the different classes. It is debatable in which way they should be added or not. This would probably imply different profiles for creators and consumers. But this is another discussion.
The vital signs discussion has revealed that different expectations are leading to different requirements. The most prominent question is: What is a vital sign information?
A hierarchy with at least 4 levels may help to clarify that:
The coloring scheme may help to interpret.