Stewardship

While data owners set the rules and are accountable for outcomes, data stewards do the day-to-day work of managing data quality, enforcing standards, and supporting governance processes.

What a Data Steward Does

• Monitors data quality and investigates issues
• Maintains data definitions and business glossary entries
• Enforces data standards and policies
• Coordinates with IT on data management issues
• Handles data access requests
• Documents data lineage and transformations
• Trains other staff on data standards

A practical example: a customer data steward at a municipality notices that 8% of address records are missing postal codes after a system migration. They investigate the root cause (a mapping error in the ETL process), work with IT to fix it, and update the data dictionary to prevent recurrence.

The Stewardship Network

Large organizations often have a network of data stewards — one or more per business domain or department — coordinated by a central data governance team. This distributed model ensures that governance is embedded in the business rather than being a purely central function. Each steward is the go-to person for questions about their domain's data.

Stewardship and Data Catalogs

Data stewards are typically responsible for maintaining entries in the organization's data catalog — the inventory of datasets, their definitions, and their metadata. A well-maintained catalog makes data discoverable and trustworthy. When a new analyst joins the team, the catalog is where they go to understand what data exists and what it means.

Key Takeaways

• Stewards execute governance day-to-day; owners set direction and accountability
• Stewardship is a business role, not an IT role
• A stewardship network distributes governance across the organization
• Catalog maintenance is a core stewardship responsibility