Every FHIR scorecard eventually converges on the same six categories. Different buyers weight them differently; some buyers rename them; a few add a seventh. The six themselves are stable, and using them as the default composition saves the two weeks that every team spends inventing categories from scratch.
Naming the six up front is the shortcut. For related reading, more on FHIR for US health systems collects the surrounding material.
Conformance Coverage
Conformance is the first category and the one every buyer overweights initially. It covers what the product actually implements against the FHIR spec, the profile packages it supports, and the certifications it holds.
The evidence sources are public: connectathon results, CapabilityStatement audits, IG Publisher runs. For the collection method specifically, quantifying vendor claims about FHIR conformance covers the approach. A pass through the site's FHIR engine scorecard normalizes conformance as its own axis alongside the others.
Performance Profile
Performance covers how the product behaves under real load. p95 and p99 latency across resource types, batch endpoint amplification, cache warm and cold behavior, cost per RPS at scale.
Evidence comes from public benchmarks, DevDays scaling talks, and reference customer conversations. Performance numbers from vendor pages need calibration against these public sources before they can be scored.
Operational Maturity
Operational maturity covers how the product behaves in production over time. Deployment tooling, observability integrations, backup and restore, upgrade path, incident history.
This category is where year-two axes live. Buyers who under-weight it at purchase discover it in month fourteen. For the year-two framing, building an honest FHIR product scorecard covers the framing.
Support Responsiveness
Support responsiveness is often collapsed into operational maturity. Separating it makes the scorecard sharper because support quality varies wildly across vendors and matters constantly in production.
The evidence source is reference customers who have been on the platform for at least eighteen months. Ticket-to-first-response and time-to-resolution are the concrete numbers.
Roadmap Alignment
Roadmap alignment covers whether the product is moving toward the buyer's workload or away from it. A vendor investing heavily in analytics is not the vendor an ingestion-heavy buyer wants; a vendor investing in clinical workflows fits chart-review buyers better than a vendor investing in payer integrations.
The evidence source is the vendor's public roadmap, their release history over the last twenty-four months, and their conference talks. Vendors that furnish structured roadmap data are usually the ones worth trusting; vendors that hedge on roadmap details are usually hedging for a reason.
Total Cost of Ownership
TCO covers the two-year total, not the purchase price. Infrastructure, integration effort, retraining, support subscription, and any migration cost from the current platform.
TCO is where the biggest surprises live in year two. Buyers who compare only purchase prices end up with a vendor that costs three times more to run than the loser. For the weighting method that keeps TCO in the picture, weighting your scorecard for your actual clinical use case is the accompanying reference.
Composing the Six
The default weight split for a typical US health system deployment is roughly:
- Conformance coverage: 20%
- Performance profile: 15%
- Operational maturity: 20%
- Support responsiveness: 10%
- Roadmap alignment: 10%
- Total cost of ownership: 25%
The split moves with the workload. Read-heavy analytics workloads shift weight toward performance and roadmap. Ingestion-heavy workloads shift weight toward conformance and operational maturity. Buyers whose workload doesn't fit the defaults are the ones who benefit most from customizing the weights.
Six categories is the composition that survives most FHIR platform evaluations. Using them as the default saves the invention time and lets the evaluation start from a defensible shape.

Sources
- HL7 FHIR core specification of conformance module - HL7 FHIR core specification of conformance module, canonical anchor for the conformance category