IOF Ontology Browser

The Industrial Ontology Foundry (IOF) is a unit of OAGi (Open Applications Group), a non-profit with the mission to reduce integration costs through interoperable, cross-functional standards for digital manufacturing.

IOF publishes a suite of OWL ontologies built on the Basic Formal Ontology (BFO). This browser exposes every class, its annotations, and formal axioms — organized by domain.

Currently browsing release 202401.

---

Domains

Domain	Description
Maintenance	The Maintenance Reference Ontology supports modelling of concepts associated with asset reliability and maintenance management. It is relevant for dat…
Supply Chain	Supply Chain Reference Ontology (SCRO) aims to represent the generic constructs (including classes and properties) related to the domain of supply cha…
Core	Core is a “mid-level” ontology that resides at the top of the suite of ontologies the IOF seeks to introduce to fulfill its mission of supporting digi…

---

Changes from the last version

Changes since the last release, 202301.

---

Architecture

All IOF ontologies are grounded in BFO 2020. The Core ontology introduces mid-level constructs common to manufacturing, and each domain ontology imports Core to extend it with industry-specific terms.

BFO 2020
  └── IOF Core
        ├── Maintenance
        └── Supply Chain

See the dependency topology for the full owl:imports graph (domain- and module-level), derived automatically from the release.

---

Maturity Levels

Badge	Meaning
🟢 Released	Stable; will not be removed without a deprecation period
🟡 Provisional	Under active development; may change substantially
🔵 Informative	Reference material; not normative

---