Ontology Explorer

Goal

Enable an agent to understand, navigate, and query the structure of materials science ontologies without loading verbose OWL/XML files directly. Provides fast access to class hierarchies, property definitions, and domain-range relationships through pre-processed JSON summaries.

Requirements

• Python 3.8+
• No external dependencies (Python standard library only)
• Internet access required only for owl_parser.py and ontology_summarizer.py when fetching remote OWL files

Inputs to Gather

Input	Description	Example
Ontology name	Registered ontology to query	cmso
Class name	A specific class to inspect	Material, UnitCell
Property name	A specific property to look up	hasMaterial, hasSpaceGroupNumber
Search term	Keyword to search across labels	crystal, lattice
OWL source	Path or URL to an OWL/XML file (for parsing/summarizing)	https://raw.githubusercontent.com/OCDO/cmso/main/cmso.owl

Decision Guidance

What do you need?
├── Understand overall ontology structure
│   └── class_browser.py --ontology cmso --list-roots
├── Inspect a specific class
│   └── class_browser.py --ontology cmso --class <name>
├── Find properties for a class
│   └── property_lookup.py --ontology cmso --class <name>
├── Look up a specific property
│   └── property_lookup.py --ontology cmso --property <name>
├── Search for a concept
│   ├── class_browser.py --ontology cmso --search <term>
│   └── property_lookup.py --ontology cmso --search <term>
├── Parse a new/updated OWL file
│   └── owl_parser.py --source <path-or-url>
└── Generate/refresh a summary JSON
    └── ontology_summarizer.py --source <url> --output <path>