- Python 75%
- Java 21.9%
- Go 3%
| Filename | Latest commit message | Latest commit date |
|---|---|---|
8c410f904cFour fixes, each aligning an example with a rule the schema already states: - The Semantic Model section example used datasets: [], violating the schema's minItems: 1; it now carries one minimal dataset. - Both metric examples (total_revenue, avg_orders) wrote expression as a bare list, omitting the required dialects wrapper that the Expression Object section above them defines; they now match the schema and the Complete Example. - The Complete Example presented a full document without the required top-level version key; it now begins with version: 0.2.0.dev0. - spec.yaml's commented primary_key examples showed a nested list (- [customer_id]) while the schema defines primary_key as a flat array of strings; the comments now show the flat form the schema and spec.md's own examples use. Verified by extracting each fixed example and running it through validation/validate.py (schema, uniqueness, references and sqlglot checks): all pass, including the Complete Example verbatim. Signed-off-by: Pawan Singh Kapkoti <[email protected]> |
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| .github | ||
| cli | ||
| compliance | ||
| converters | ||
| core-spec | ||
| docs | ||
| examples | ||
| ontology | ||
| python | ||
| validation | ||
| .asf.yaml | ||
| .editorconfig | ||
| .gitignore | ||
| CONTRIBUTING.md | ||
| DISCLAIMER | ||
| LICENSE | ||
| NOTICE | ||
| README.md | ||
| ROADMAP.md | ||
Apache Ossie (incubating)
Apache Ossie is a collaborative, open-source effort dedicated to standardizing and streamlining semantic model exchange and utilization across the diverse array of tools and platforms within the data analytics, AI, and BI ecosystem. Our shared vision is to establish a common, vendor-agnostic semantic model specification, promoting unparalleled interoperability, efficiency, and collaboration among all participants. By providing a single, consistent source of truth, this vendor-agnostic standard ensures that your data's definitions and value remain consistent as they are interchanged between AI agents, BI platforms, and all other tools in your ecosystem, eliminating inconsistencies across your different tools.
Apache Ossie was formerly known as Open Semantic Interchange (OSI).
Apache Ossie provides a single JSON- and YAML-based specification that any tool can read and write, addressing the semantic fragmentation common across today's data stack: the same KPI defined differently across tools, teams spending significant effort manually reconciling definitions, and AI agents producing unreliable outputs grounded in inconsistent business logic.
What's in this repository
core-spec/— The Ossie core specification (spec.md), the machine-readable schema (spec.yaml,osi-schema.json), and accompanying documentation.converters/— Reference converters that translate between Ossie and other semantic formats (e.g., dbt, GoodData, Polaris, Salesforce).examples/— Example semantic models, including a complete TPC-DS model.validation/— Tooling for validating semantic models against the Ossie schema.docs/— Project documentation and overview.
Get involved
- Contribute: See CONTRIBUTING.md for how to propose specification changes, contribute code, and participate in the community.
- Roadmap: See ROADMAP.md for current working groups, future efforts, and planned enhancements informed by community discussion.
- Discuss: Join the conversation on GitHub Discussions and Issues.
- Join the Slack community: Chat directly with contributors on Slack.