Ontology Quality Suite

Python tools for checking that an OWL2 ontology stays internally consistent across versions, and that TARQL/oxi-gen CONSTRUCT-query transformation files stay aligned with the ontology(ies) they triplify against -- namespaces, class/property usage -- with suggested diffs for automated repair, either against local files or a live Fuseki (SPARQL 1.1 Protocol) triplestore.

This package carries forward the full ontology_suite pipeline from the sibling consolidated_ontology_suite checkout (OntoQA/OQuaRE metrics, SHACL+SPARQL registry checks, OWL2 profile/reasoner-backed consistency, docgen -- the same logic is also ported to TypeScript in consolidated_ontology_suite_webapp, the VS Code extension) and adds three things that didn't exist in Python before:

• Ontology-version consistency + rename detection (ontology_suite.versioning.rename_detection) -- pairs up a version diff's removed/added classes and properties into probable renames, using either an explicit owl:equivalentClass/dcterms:isReplacedBy migration annotation (high confidence) or local-name similarity (fallback).
• Automated repair suggestions (ontology_suite.repair, ontology_suite.checks.repair) -- turns a TARQL/ontology misalignment or a registry-check finding into a concrete unified diff: a PREFIX line fix, an IRI-rename substitution across a query file, an ontology declaration stub, or a real SPARQL 1.1 Update -- reviewable as a .patch file, or applied directly.
• Live triplestore support (ontology_suite.remote) -- runs the same checks against a Fuseki (or any SPARQL 1.1 Protocol) dataset, named-graph aware: diff two ontology versions held as separate named graphs, run the existing registry .rq checks scoped to exactly the graphs they should see, or three-way check a live triplified named graph against its ontology graph and its local TARQL source file.

Every --ontology/--data/query-source argument throughout accepts a local file, an http(s) URL, or either gzip-compressed, transparently (see ontology_suite/io_utils.py and docs/ARCHITECTURE.md's "Loading files" section).

New here? Start with docs/PRIMER.md -- a task-oriented guide to which command answers which question, worked examples for every major use case (auditing an ontology, validating a CSV-to-RDF pipeline, releasing a new version, auto-repairing drift, taxonomy governance, live-triplestore checks, CI wiring), and a suggested adoption path. New to RDF/OWL? It opens with a short, plain-language glossary. Prefer running things over reading them? docs/primer.ipynb is a Jupyter notebook covering most of the same ground with live, executable cells against this repo's own examples/ fixtures (validated on every push by .github/workflows/notebook.yml).

See docs/CONSISTENCY_AND_REPAIR.md for the local-file workflow, docs/FUSEKI.md for the live-triplestore one, docs/ARCHITECTURE.md for the inherited pipeline this all sits on top of, and docs/UPSTREAM_README.md for that pipeline's own original README.

Quick start

uv sync
uv run ontology-quality-suite consistency --new domain-v2.ttl --old domain-v1.ttl --queries queries/

from ontology_suite import consistency

report = consistency.check_consistency(
    "domain-v2.ttl", old_ontology="domain-v1.ttl", tarql_sources=["queries/"],
)
print(consistency.format_consistency_report(report))
consistency.apply_repairs(report.repairs, min_confidence=0.7)

CLI

ontology-quality-suite ontology            --ontology domain.ttl
ontology-quality-suite checks              --ontology domain.ttl [--data data.ttl]
ontology-quality-suite sketch              --queries queries/ [--ontology domain.ttl]
ontology-quality-suite triplify            --csv-dir csv/ --queries queries/
ontology-quality-suite data                data.ttl [more.ttl ...] [--ontology domain.ttl]
ontology-quality-suite docgen              --ontology domain.ttl
ontology-quality-suite run                 whichever of --ontology/--queries/--csv-dir/--data apply
ontology-quality-suite version-diff        old.ttl new.ttl
ontology-quality-suite consistency         --new domain.ttl [--old domain-v1.ttl] [--queries queries/] [--apply-repairs]
ontology-quality-suite consistency-remote  --query-endpoint URL --manifest graphs.json

Tests

uv run pytest