The Toolkit
Four distribution variants — two public, two on request
OCO is not a monolith for all-or-nothing download. The licence architecture is a clear three-tier matrix (REUSE 3.3, ADR-103): CC-BY 4.0 for the L0 bridge layer — CC-BY-SA 4.0 for the L1 skeletons of the material-audience modules (except oco-supplier and the eleven compliance modules) plus tensor roots, role individuals, cross-axioms, and pilot ABoxes — everything else proprietary and available under individual licence: material/supplier detail, the full L2/L3, the compliance modules complete (L1+L2+L3), the seven-layer mechanistic skeleton, the SHACL constraints.
Bridge Layer (bridge.ttl)
For integration with PMDco, QUDT, CHMO, ChEBI, and further MSE standards. The slimmest entry — 11 substantial bridge targets, 91 anchor classes. No material-class load.
LIMS/ELN-Ready (L0 + public L1)
L1 skeletons of the material-audience modules: sample, equipment, measurement, identifier, provenance — the LIMS/ELN baseline. Excluding oco-supplier and excluding the eleven compliance modules (separately licensed). Plus tensor roots, role individuals, and cross-axioms.
Dual licensing to CC-BY 4.0 available on request for commercial integrators that cannot adopt copyleft.
OCO Ceramics Full (+L2)
L2 with the material-specific modules: material, crystal (230 space groups), element, defect (Kröger-Vink), phase, composite (Newnham). 2,157 L2 classes, plus the oco-supplier module. Developed under project confidentiality.
For industrial customers with ceramics research needs.
OCO Full Stack — with Reasoning (+L3)
Material full bundle including the 325 logical L3 reasoning axioms — symmetry-effect coupling, route templates, lifecycle constraints. For reasoning tools, CQ validation, and synthesis-route auditing. Optionally combinable with the eleven compliance modules and the seven-layer mechanistic skeleton (see coverage overview below).
For SPARQL test pipelines and industrial reasoning applications.
What OCO covers in total — public and on request
Four content tiers, two licence pillars. For depth on each tier, every card links to the matching audience perspective.
L0 Bridge Layer public · CC-BY
11 substantial bridge targets (PMDco, QUDT, EMMO, CIF, CHMO, ChEBI, PROV-O, NFDIcore, MADO, OBI, BattINFO), 829 cross-ontology mappings across 40 sections. EU and industry bridge targets up to EN 15804, Catena-X CX-0010/CX-0146, AAS IEC 63278, EFRAG XBRL, EU AI Act.
Material-agnostic L1 public · CC-BY-SA
LIMS/ELN baseline: sample, equipment, measurement, identifier, provenance, investigation, process. Plus tensor roots (190 classes), role NamedIndividuals, cross-module axioms, pilot ABoxes and the module namespace registry. Depth in the LIMS/ELN perspective →
EU Compliance Layer (L1+L2+L3) on request · proprietary
Eleven EU regulatory modules, fully integrated into the material model: CSRD/ESRS, LCA, Manufacturing-X, CSDDD, PPWR, CBAM, R2R, AI Act, regulated substances, recycling, SSbD. Plus four dual-audience modules (format, odrl, time-event, automation). Depth in the compliance perspective →
Material & Reasoning Stack (L2+L3) on request · proprietary
Material taxonomy (BNT-BT pilot + ceramic-family slots), crystal (230 space groups), defect (Kröger-Vink), phase, composite (Newnham), localstructure, properties (~950 MaterialParameter sub-classes), supplier. Plus 325 L3 reasoning axioms, 5,920 Neumann constraints, seven-layer mechanistic skeleton with 5 external caches, 1,120 SHACL NodeShapes. Depth in the materials perspective → or the architecture perspective →
Need a variant not listed here — specific L2 modules, a particular bridge subset, a ZIP bundle with imports, or a dual-licence configuration of the public L1? Get in touch — engineering details on order fulfilment are in the Engineering Services section.