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Data Stewardship

The Stewardship page at /mdm/stewardship is where domain experts review and resolve MDM cases that the auto-matcher couldn't decide alone — borderline matches, attribute conflicts, suspected duplicates flagged by users.

Case types​

CaseWhen it appears
Match reviewMatch score in middle band (75–94 by default)
Conflict resolutionAuto-merge couldn't pick between conflicting attribute values
Suspected duplicateUser-reported via Golden Records detail panel
Negative-match candidateHigh-similarity records the rules say match but stewards reject
Stewardship requestManual case opened by another user

Queue​

The page is a worklist filtered by:

  • Assigned to me — default view
  • Unassigned — pick up new work
  • By entity type — customers / products / accounts
  • By severity — critical / high / normal
  • By age — oldest first to clear backlog

Each case shows the candidate records side by side with similarity scores, attribute-level conflicts highlighted.

Resolve​

Per case, the steward can:

  • Approve match — confirm the records are the same; merge proceeds
  • Reject match — confirm they're different; records stay separate; optionally flag as Negative Match so they don't re-appear
  • Edit before merge — pick winning attribute values per field, then approve
  • Defer — set a follow-up date and unassign
  • Reassign — escalate to another steward / domain expert

SLAs​

Cases have an aging clock. Default SLAs:

  • Match review: 5 business days
  • Conflict resolution: 3 business days
  • Suspected duplicate: 7 business days

Past-SLA cases are flagged red; admins get a daily digest.

Stewardship metrics​

A side panel shows the steward's stats:

  • Cases resolved this week
  • Avg resolution time
  • Match-acceptance rate
  • Backlog size

For team rollups, see MDM Reports.

API​

GET   /mdm/stewardship?assigned_to=me&status=open
POST  /mdm/stewardship/{case_id}/resolve
{
  "action": "approve_match",
  "notes": "...",
  "attribute_overrides": { "email": "..." }
}
POST  /mdm/stewardship/{case_id}/reassign  { "to": "alice@..." }