Asset Pages
Every data asset catalogued in Calabi Catalogue has a dedicated asset page — a single place to understand a table, dashboard, pipeline, or topic in full detail. Asset pages aggregate schema information, data quality results, lineage graphs, usage statistics, and collaborative annotations in one view.
Anatomy of a Table Asset Page
┌────────────────────────────────────────────────────────────────────┐
│ [Icon] psychometric_reporting.scores [ Follow] │
│ Redshift Production • Gold tier • Owner: Analytics Team │
│ "Stores all exam attempt results, one row per attempt..." │
│ │
│ [Schema] [Sample Data] [Lineage] [Quality] [Activity] [Custom] │
├────────────────────────────────────────────────────────────────────┤
│ OVERVIEW │
│ Tier: Gold Last updated: 2026-04-05 Rows: 18.4M │
│ Domain: Exams Tags: exam-core, finance │
│ │
│ Owners: Jane Smith • Analytics Engineering │
└────────────────────────────────────────────────────────────────────┘
Tab Reference
Schema Tab
The Schema tab lists every column in the table with its metadata:
| Column | What it shows |
|---|---|
| Name | Column name as it appears in the database |
| Data type | VARCHAR, INTEGER, TIMESTAMP, BOOLEAN, etc. |
| Description | Human-written explanation of the column's contents |
| Tags | Classification tags applied to this column (e.g., PII, computed) |
| Glossary term | Linked business glossary terms |
| Constraint | PRIMARY KEY, NOT NULL, FOREIGN KEY if detected |
| Profiling stats | Null %, distinct count, min/max (if profiling has run) |
Click any column name to expand its detail panel, showing full description, linked glossary terms, data quality test results, and change history.
Sample Data Tab
Shows a preview of up to 50 rows from the table (respects your data permissions — you see only rows you are authorized to access).
- Use the Refresh button to fetch a fresh sample.
- Click a cell value to copy it to clipboard.
- PII-tagged columns are automatically masked (
***) unless you hold a role with PII access.
Lineage Tab
The Lineage tab displays an interactive graph of upstream and downstream dependencies.
| Lineage control | Function |
|---|---|
| Expand upstream | Show all tables that feed into this asset |
| Expand downstream | Show all assets built from this table |
| Column-level lineage | Trace a specific column through transformations (Professional+) |
| Time travel | View lineage as it existed at a past date |
Quality Tab
Shows all data quality test results associated with this table.
| Column | Meaning |
|---|---|
| Test name | e.g., not_null:candidate_id, unique:attempt_id |
| Status | Pass / Fail / Skipped |
| Last run | When the test was last executed |
| Failure details | For failing tests, the count or sample of failing rows |
See Data Quality Tests for the full guide.
Activity Tab
The Activity tab is the asset's collaboration feed. It shows:
- Description edits — who changed the description and when.
- Tag changes — tags added or removed.
- Owner changes — ownership transfers.
- Conversation threads — @mention discussions.
- Test result events — quality tests that newly passed or failed.
Posting a comment
- Click the Activity tab.
- Type in the comment box at the bottom.
- Use
@usernameto mention a teammate. - Click Post.
Following an asset
Click Follow (star icon, top-right of the asset page) to receive notifications when the asset's metadata changes, test results update, or new comments are posted.
Editing Descriptions
Clear, accurate descriptions are the foundation of a healthy data catalogue.
Editing the table description
- Click the description text (or the Edit pencil icon next to it).
- The description editor opens — it supports Markdown.
- Write or update the description.
- Click Save.
Good description structure:
## Purpose
Stores all exam attempt records submitted through the Calabi platform.
One row per attempt. Voided and practice attempts are excluded.
## Key columns
- `attempt_id` — unique identifier for this attempt (UUID)
- `candidate_id` — foreign key to `dim.candidates`
- `passed` — boolean; TRUE if the candidate met the passing threshold
## Notes
- Populated by the `score_loader` Calabi Pipeline (runs every 15 minutes)
- Upstream source: Exam Platform API → Calabi Connect → S3 → Redshift
Editing a column description
- Click the column name in the Schema tab.
- Click the Edit icon next to the description field.
- Enter the description and click Save.
Adding and Changing Owners
Owners are accountable for an asset's accuracy and documentation.
Adding an owner
- On the asset page, click + Add owner (or click the existing owner badge).
- Search by name or email.
- Select the user or team.
- Click Save.
An asset can have multiple owners — both individual users and teams.
Owner responsibilities
| Responsibility | Description |
|---|---|
| Keep descriptions up to date | When schema changes, update column descriptions |
| Respond to comments | Answer @mention questions within a reasonable SLA |
| Manage tags | Ensure PII and classification tags are current |
| Monitor quality tests | Investigate and resolve test failures |
| Certify the asset | Mark as Gold tier when the asset meets quality standards |
Applying Tags
Tags are searchable labels that classify assets. See Tags & Classification for the full tagging guide.
To add a tag quickly from an asset page:
- Click + Add tag in the tags section (below the description).
- Search for existing tags or create a new one.
- Select and click Save.
Tier Badges
Tier reflects the asset's quality and reliability:
| Badge | Meaning | Who can set |
|---|---|---|
| Gold | Certified, production-grade | Admin, Data Steward |
| Silver | Generally reliable, mostly documented | Owner, Data Steward |
| Bronze | Experimental or in-progress | Any user |
To set or change the tier:
- Click the tier badge (or the Edit pencil next to it).
- Select the appropriate tier.
- Click Save.
Asset Actions
| Action | How to access | Who can perform |
|---|---|---|
| Edit description | Click description text | Owner, Steward, Admin |
| Edit column descriptions | Schema tab → click column | Owner, Steward, Admin |
| Add / remove owners | Owner section → + Add | Owner, Admin |
| Add / remove tags | Tags section → + Add tag | Any user |
| Set tier | Tier badge → Edit | Owner, Steward, Admin |
| Follow asset | Star icon (top-right) | Any user |
| Post comment | Activity tab → comment box | Any user |
| Add to glossary term | Schema tab → column → Glossary | Steward, Admin |
| View lineage | Lineage tab | Any user |
| Run quality test | Quality tab → Run | Owner, Admin |
| Export schema as CSV | Schema tab → ··· → Export | Any user |
Asset Versions
The Catalogue automatically versions asset metadata. When any field changes (description, tags, owners, tier), the previous version is stored.
To view version history:
- Click ··· (more menu, top-right of the asset page).
- Select Version history.
- Browse past versions and their diffs.
You can restore any previous version by clicking Restore on that version entry.