• About us
    About us
    question mark
    Who we are

    Learn more about Mantu values, governance and offices.

    hexagon
    Our brands

    11 brands united by a shared vision.

    leave
    Sustainability

    Our strategy through diversity, environment and innovation.

    bookshelf
    Pressroom

    Breakthroughs, partnerships, and voices behind the transformation.

  • What we do
    What we do
    mantu
    PRACTICES

    Four practices designed to empower organizations, connect talent, and shape sustainable growth.

    cpu
    Technology

    Deep industry knowledge & cutting edge technology to co-create meaningful solutions.

    handshake
    Total Talent Management

    Tech to boost talent and create strong links between companies and the minds they need.

    digital qr
    Creative Intelligence

    Ensure continuity between decision, activation, and adoption. One team, one trajectory, through to lasting impact.

    medal
    Leadership & Advocacy

    Equip executive teams to define their purpose, shape their positioning and drive their strategy.

  • Insights
    Insights
    book open 4
    Blog

    Bold thinking. Fresh perspectives.

    book check
    Client Stories

    Where audacious ideas turn into real stories.

    mantu best managed companies award
    Mantu awarded one of Switzerland’s Best Managed Companies 2025 by Deloitte

    This award highlights the exceptional performance of privately held Swiss companies that demonstrate excellence in strategy, governance, innovation, and long-term results.

    Read more
    WeMeet 2025-2772 1 1
    Mantu signs the DEI Charter

    At the beginning of July 2025, Mantu’s Executive Committee signed the DEI Charter to foster diversity, equity, and inclusion at Mantu.

    Read more
  • Careers
    Careers
    binoculars
    Life at Mantu

    Mantu, as seen by its team members.

    building
    Find a company

    Mantu brings together complementary brands that cover many sectors, all around the world.

data stewardship thumbnail blog mantu

Data stewardship: roles, responsibilities, and how to implement it across your organization

Data stewardship is the human layer of governance: the network of accountable individuals embedded in the business who translate governance policy into observable, measurable practice.

Why governance frameworks fail without stewardship


A governance framework defines what should happen to data: how it should be classified, who can access it, how long it should be retained, what quality standards it must meet. But defining what should happen and ensuring that it actually does are two entirely different organizational challenges.

In practice, data quality degrades because no one at the operational level has explicit accountability for maintaining it. Sensitive data is shared outside approved channels because the people making that decision do not know or do not feel responsible for the classification rules that apply. Data dictionaries go stale because the individuals who know the business context have never been tasked with keeping them current.

Citation Quote Primary

Governance without stewardship is like having traffic laws without traffic police the rules exist, but there is no mechanism of daily enforcement.

Data stewardship closes this gap. It creates the accountability structure that makes governance operational not as a top-down mandate, but as a distributed network of informed, empowered individuals who own data quality in their domain. Mantu's data governance services consistently identify the absence of a functioning stewardship model as the most common root cause of governance dysfunction in mid-to-large organizations.

Data steward role: what it actually involves day-to-day


The data steward role is frequently misunderstood reduced in practice to either a glorified data entry function or an undefined mandate with no time allocation. Neither version works. An effective data steward is an operational governance actor with a specific, bounded scope of accountability and the organizational authority to act within it.

Core responsibilities of a data steward

  • Data quality monitoring: Actively tracking the quality of data within their domain completeness, accuracy, consistency using defined metrics, and escalating issues that exceed acceptable thresholds.

  • Business glossary maintenance: Owning the definitions of key data entities and metrics within their domain. When a data consumer asks what "active customer" means in the CRM, the data steward provides the authoritative answer and updates the definition when the business rule changes.

  • Issue resolution: Investigating and resolving data quality issues that are reported by consumers or surfaced through monitoring. This requires both domain knowledge (to understand why the data looks wrong) and cross-functional influence (to get the upstream source corrected).

  • Access and classification review: Reviewing and validating data access requests, ensuring that classification labels are correctly applied to new datasets, and flagging data that has been miscategorized.

  • Policy compliance at the operational level: Ensuring that the people working with data in their domain understand and follow the governance policies that apply not by policing, but by educating, clarifying, and being the accessible point of contact for governance questions.

The steward does not set policy. That is governance leadership's role. The steward enforces and maintains it at the point where data is actually created and used.

Data steward vs data owner: a distinction that matters operationally


Conflating data steward vs data owner is one of the most common structural errors in governance design and it produces accountability gaps that are hard to diagnose from the outside. The two roles are complementary but distinct, and they need to be filled by different people with different levels of organizational authority.

DATA OWNER

DATA STEWARD

Strategic accountability

Typically a senior business leader (VP, Director, domain head). Accountable for the strategic value and fitness-for-purpose of data within their domain. Makes decisions on classification, retention policy, and access at a policy level. Not operational does not perform day-to-day stewardship activities.

Operational accountability

Typically a domain expert or analyst with deep knowledge of the data in their area. Accountable for the day-to-day quality, correctness, and compliance of data within their scope. Executes the policies set by the data owner. Reports quality issues, maintains definitions, resolves conflicts.


The relationship between owner and steward is one of delegated accountability: the owner is ultimately responsible, but the steward is the operational mechanism through which that responsibility is exercised. Where organizations collapse these roles into one typically by making a data owner responsible for operational quality without the time or proximity to manage it stewardship effectively does not function.

Data governance roles and responsibilities: mapping the full team structure


Stewardship does not operate in isolation. It is one layer in a broader data governance roles and responsibilities structure that also includes governance leadership, a data council or committee, and the data consumers who work with governed data every day. Understanding how these roles interact is essential for designing a governance team structure that actually functions.

R= Responsible (does the work)

A= Accountable (owns the outcome)

C= Consulted

I= Informed

Activity

Data Council

Data Owner

Data Steward

Data Consumer

Define governance policies

A

C

C

I

Approve data classification

C

A

R

I

Maintain business glossary

I

A

R

C

Monitor data quality metrics

I

C

R/A

I

Resolve data quality issues

I

A

R

C

Approve access requests

I

A

R

I


A data governance team structure that maps these responsibilities clearly and communicates them across the organization removes the ambiguity that leads to accountability gaps. When everyone knows what they are responsible for, and who to escalate to when a governance issue falls outside their scope, the framework functions as designed.


How to implement data stewardship across your organization


Standing up a stewardship program is an organizational change initiative as much as a governance one. The technical infrastructure data catalogs, quality monitoring tools, ticketing systems for issue resolution matters, but it is secondary to the organizational design decisions that determine whether the steward network has the mandate, the time, and the support to function.

1- Define the scope of stewardship

Map the organization's data domains the distinct areas of data that correspond to business functions (customer data, product data, financial data, HR data). Each domain needs a steward. Resist the temptation to create a single enterprise steward the role only works when it is embedded in the domain it governs.

2- Appoint stewards from within the business

Stewards should be domain experts who understand the data in context, not IT staff tasked with a new responsibility. The best stewards combine business knowledge with enough data literacy to work with quality metrics and classification rules. Crucially, stewardship must be a recognized part of their role with explicit time allocation not an informal add-on.

3- Define responsibilities and escalation paths

Document what each steward is responsible for which datasets, which quality dimensions, which governance activities and establish clear escalation paths for issues that exceed their authority to resolve. Ambiguity at this stage produces inaction when governance issues arise.

4- Provide tooling and training

Stewards need access to the tools that make their work possible: data catalog access to view and update metadata, quality dashboards to monitor their domain, and a channel to raise and track issues. Training should cover both the governance framework what the policies are and why they exist and the practical workflows for executing steward responsibilities.

5- Establish a regular cadence and community

Stewards work in isolation if they are not connected to each other and to governance leadership. A regular steward community meeting monthly or quarterly shares best practices, surfaces systemic issues, and maintains alignment as policies evolve. This community also builds the sense of shared purpose that sustains stewardship over time, rather than letting it fade as initial enthusiasm wanes.

Building a functional stewardship program from scratch typically takes six to twelve months to reach operational maturity longer in large, complex organizations. The investment is significant, but so is the return: a governance framework with active stewardship enforces itself continuously, rather than requiring periodic remediation campaigns when quality or compliance issues accumulate to a crisis point.

Mantu's data governance services support organizations at every stage of this implementation from initial governance design and role definition through to stewardship program rollout and maturity assessment.