Caution
Unofficial prototype with fictional data. Features may be incomplete, and it is not intended for production use.
Data catalog backed by a SQLite file that runs entirely in the browser through sql.js: sidebar navigation, full-text search, detail views for every entity, interactive lineage graphs, and an optional KI-Assistent that answers natural-language questions by querying the catalog through a Claude-powered Cloudflare Worker. In-app branding: BBL Datenkatalog. Part of the BBL Data Catalog prototypes.
Live demo: https://bbl-dres.github.io/data-catalog/prototype-sqlite/
- SQLite catalog loaded client-side via sql.js (WASM); the
.dbfile is the single source of truth. - Keyboard search (Ctrl+K) and a dedicated search page.
- Sidebar navigation across terms, business objects, code lists, systems and datasets.
- Detail pages with metadata, attributes, lineage and relationships; interactive UML and lineage graphs.
- Excel export and SQLite database download.
- KI-Assistent: natural-language chat over the catalog, backed by Claude with tool-call access to SQL (optional backend).
- Multilingual UI: German primary, with French, Italian and English.
Static vanilla JavaScript that loads the SQLite file over HTTP, so serve it from the repository root:
python -m http.server 8000Open http://localhost:8000/prototype-sqlite/. The KI-Assistent needs the Cloudflare Worker in ../chat-worker/; without it the view shows a "not configured" notice and everything else works. After deploying, set CHAT_WORKER_URL in js/views/search.js.
- Development guide — architecture, data model, routing, conventions and the chat integration.
- Data model — full ERD and entity reference; the generic-node and hybrid variants are exploratory drafts.
- Chat worker — deploying the KI-Assistent backend.
Project code is covered by the MIT License. sql.js, Lucide and SheetJS are loaded from CDN under their own licenses.