The OIML-CS SMART platform

The OIML-CS workflow, modelled end to end on B 18:2025. Every participant role, every document, every verdict is an entity in the system, so the whole chain is traceable, and every state change carries its evidence.

1. 01

   Application

   , the applicant files for type evaluation against a modelled Recommendation, identity, classification, the model family matrix.
2. 02

   Sample request

   , the issuing authority requests samples of the type; the chain of custody starts here, every hand-off recorded.
3. 03

   Dispatch

   , the application goes to a test laboratory as a structured test request, per form, per requirement set, never a PDF in an email.
4. 04

   Lab test runs

   , the laboratory executes the conformance tests; evidence is captured once, at the bench, against the form the Recommendation declares.
5. 05

   Evaluation

   , the test reports roll up into a type evaluation, every verdict computed from the requirement model, none asserted by hand.
6. 06

   CNML-signed certificate

   , the authority issues the certificate as a signed CNML document, the verdict chain, signed, verifiable by anyone.
7. 07

   BIML registration

   , the certificate registers with the BIML, the public register is the same database the workflow wrote to all along.

The scheme itself, the roles, the documents, the governance, is on the OIML-CS page; the certificate format is OIML CNML.

Every participant in the OIML-CS gets a console shaped to their role in the workflow, the same underlying model in four different seats.

The OIML Certificate System for Measuring Instruments began in 1991 as a paper workflow: applications by mail, test reports as documents, certificates as signed paper. OIML B 18, the Framework for the OIML Certification System, defines the current scheme, and the 2025 edition (B 18:2025) names digital operation as the direction. The platform is that direction built: the scheme's roles, documents, and decisions modelled as entities and processes, so the workflow the Basic Publication describes is the workflow the system runs.

The platform runs where the authority needs it: as the shared system the BIML operates for everyone, or as an authority's own instance whose signed submissions the shared register accepts. The member-state deployment is the OIML SMART Platform.

The SMART+ tier extends the same runtime to the individual certified instrument. Every type-instance in service carries a twin; every measurement is signed and traceable; every conformance verdict runs against the SMART Recommendation continuously. The Type-approval baseline (the SMART-tier output) is the contract; the SMART+ lifecycle is the instrument fulfilling it, in the field, over time.

1. 01

   Type-instance enrolment

   , a manufactured instrument of a certified type is enrolled against its Type-approval baseline; the twin is registered, the chain to the type begins.
2. 02

   Calibration

   , initial calibration captures the instrument-specific parameters, signed by the calibrating lab, attached to the instance twin.
3. 03

   In-service measurements

   , the instrument reports measurement streams — each reading signed, timestamped, traceable to the instance twin and through it to the type.
4. 04

   Continuous conformance

   , conformance runs against the SMART Recommendation continuously, not episodically; deviations are events, not incidents discovered at re-verification.
5. 05

   Re-verification

   , scheduled and event-triggered re-verifications run the same test programs against the live twin; verdicts update the instance certificate.
6. 06

   Withdrawal

   , end-of-life or withdrawal cancels the instance certificate; the type certificate remains; the registry reflects the change immediately.

The instrument twin is SMART Measuring Instruments; the simulated twin for bench work is SST; the instance certificate is OIML CNML at the Type-instance level.

The SMART+ tier adds the operator seat and reshapes the laboratory and authority consoles around the live twin, not the paper record.

The OIML-CS SMART+ Platform is the global registry of Type-instance certificates and the cross-border verifier for instruments in service. Member states, NMIs, and laboratories may run their own OIML SMART+ Platform under national custody, federating instance data upstream.

Global · SMART+

OIML-CS SMART+ Platform

BIML-operated registry of Type-instance certificates. The cross-border verifier for instruments in service across member states.

Member · SMART+

OIML SMART+ Platform

Member-state deployment of the SMART+ runtime. Instance data under national custody, federated with the global register.