S
Standards
International metrology recommendations as structured digital artifacts.
01
Standards that are
machine-actionable
OIML SMART transforms International Recommendations from static PDF documents into structured digital artifacts, executable, traceable, and interoperable across the global metrology community.
Primmel · PRL·Turtle · JSON-LD·Open Standards
§ 01S · M · A · R · T001/005
What "SMART" stands for
Five properties that distinguish a SMART Recommendation from a traditional PDF. Together, they make the Recommendation a functional digital artifact, not just a document.
M
Machine-Actionable
Embedded computation engines perform metrological calculations directly.
02
A
Accessible
Instant search, cross-references, and real-time calculation in the browser.
03
R
Readable
Machine-readable requirements, tests, and terminology in open formats.
04
T
Transferrable
A shared ontology layer enables cross-Recommendation interoperability.
05
§ 02What SMART is built onIS · HAS · DOES
Eight words, two tiers, twelve components
Every SMART artifact, an instrument, a lab, a certificate, is described with exactly eight words: three relations and five sorts, closed under composition. The program is split into two tiers — SMART (published artifacts and Type-approval certification) and SMART+ (the full instrument-instance and measurement lifecycle).
isrelation
identity — which thing, and what kind of thing
hasrelation
attribution — what the thing holds
doesrelation
behavior — what the thing does
objectsort
anything identity can individuate
propertysort
the slot — a dimension of variation
valuesort
what fills the slot — data or a reference
transitionsort
input → transform → output
processsort
a transition reified as an object
Tier · SMART
Published artifacts and Type-approval certification
SMART Recommendations
→The published, expert-authored executable Recommendations. R 60 is the pilot reference; other Recommendations are modelled for demonstration.
01
SMART Vocabulary
→The shared terminology. Every concept in a SMART Recommendation resolves to one governed term across publications.
02
Resources
SMART Resources
→The publications and resolutions databases. The full OIML corpus, searchable and cross-referenced.
03
SMART Studio
→The interactive, read-only reader over the SMART Recommendations. The viewer renders a Recommendation’s model for reading — the requirement tree, the tests, the forms, and the clause-level provenance — mounted at /studio/view, public and account-free.
04
OIML CNML (IA level)
→The Certificat Numérique de Métrologie Légale at the Issuing-Authority / Type-approval level. The machine-readable certificate an issuing authority signs for a certified type, verifiable by anyone in a browser.
05
OIML-CS SMART Platform
→The OIML-CS global deployment. Applications, testing, evaluation, certificates, and BIML registration run as one digital workflow, hosted by the OIML-CS for every member state.
06
OIML SMART Platform
→The optional member-state deployment of the SMART runtime. NMIs, test laboratories, and issuing authorities may run their own instance — workflow engine and certificate PKI — federating with the global OIML-CS SMART Platform, or use the global platform directly.
07
Tier · SMART+
Instrument-instance and measurement lifecycle
OIML CNML (full)
→CNML at the Type-instance and measurement level. The certificate covers the individual instrument in service, its calibration, and the measurement stream — verifiable in eight checks at any point in the instrument’s life.
01
SMART Measuring Instruments
→Physical instruments that provide a SMART digital twin. The instrument itself is the API that certification and continuous compliance talk to.
02
SMI Simulation
→The SMI Simulation: an SST (Simulated SMART Measuring Instrument Twin) booted on the Primmel SST framework. The ACME LC-500 family and its siblings simulate metrologically real physics, so test programs run without hardware.
03
OIML-CS SMART+ Platform
→The OIML-CS global SMART+ deployment. Extends the SMART workflow to the full Type-instance and measurement lifecycle — every certified instrument in service, continuously.
04
OIML SMART+ Platform
→The optional member-state SMART+ deployment. Run a local instance of the full instrument-lifecycle runtime, federating Type-instance and measurement data with the global OIML-CS SMART+ Platform.
05
The full flow·from a Recommendation, test an instrument's simulation, issue its certificate
§ 03Pilot CoverageWorking Snapshot
What the pilot currently covers
Working figures as of the current pilot snapshot. Will grow as more Recommendations and features are added.
4Recommendations
162Requirements
107Conformance Tests
107Smart Forms
§ 04Recommendations4 modelled
Recommendations in the pilot
Each Recommendation below is at a different point in the modelling pilot. Numbers reflect the working model and may change as the pilot evolves.
R 60 · 2021Draft
Load Cells
Metrological regulation for load cells used in nonautomatic weighing instruments. The pilot SMART Recommendation.
42 reqs18 tests12 forms
View →
R 91 · 2025Draft
Traffic Speed Meters
Traffic speed meters for speed enforcement, from Doppler radar to average-speed section control. Preview edition of the 2025 four-part text.
57 reqs64 tests78 forms
View →
R 129 · 2000Draft
Mass Road Vehicles
Dynamic measuring instruments for the determination of mass of road vehicles in motion.
35 reqs14 tests9 forms
View →
R 144 · 2006Draft
Gas Meters
Gas meters — diaphragm gas meters deployed for custody transfer and billing.
28 reqs11 tests8 forms
View →
§ 05Capabilities6 subsystems
Capabilities delivered in the pilot
These are the working capabilities in the current build. They are subject to change, the pilot is intentionally exploratory.
01PRIMMEL
Structured Requirements
Requirements as executable constraints with explicit acceptance criteria and applicability filters.
02PROCESSES
Conformance Testing
Tests as executable processes, linked to the requirements they probe via explicit dependency chains.
03CALC · FORM
Smart Forms
Calculation-powered forms that auto-compute field values based on instrument classification.
04WORKFLOW
Certification Workflow
End-to-end digital certification: application → test report → evaluation → certificate.
05OWL · SKOS
Semantic Ontology
OWL-based ontology for cross-Recommendation interoperability and semantic queries.
06PAGEFIND
Document Library
Browse all OIML documents in structured, searchable format with instant full-text search.
§ 06Audience PathsSix seats
Who OIML SMART is for
The program touches every role in legal metrology, and for each role it changes something specific. Pick your seat: the pain as it exists today, the mechanism that removes it, the proof you can check.
i
For Member States & NMIs→
Executable Recommendations, monitorable compliance, and a tiered adoption program for legal-metrology authorities.
ii
For Manufacturers→
Publish a reference model of your instrument, ship a SMART twin, and certify continuously instead of episodically.
iii
For Test Laboratories→
Structured test runs, evidence captured once at the bench, reports generated, rehearsed on the simulator first.
iv
For Issuing Authorities→
The OIML-CS as a digital workflow: applications to certificates, every verdict computed, every document traceable.
v
For Instrument Users→
Continuous compliance for the instruments you depend on, query the twin, read the evidence stream.
vi
For Educators & Students→
The classroom: certify a simulated load cell before you ever touch a real instrument.