Data steward

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In metadata, a data steward's role is assigned to a person that is responsible for maintaining a data element in a metadata registry.

Data stewardship roles are common when organizations are attempting to exchange data precisely and consistently between computer systems and reuse data-related resources.

Contents 1 Data Steward Responsibilities 2 Benefits of Data Stewardship 3 See also 4 References

[edit] Data Steward Responsibilities

A data steward ensures that each assigned data element:

1. Has clear and unambiguous data element definition.
2. Does not conflict with other data elements in the metadata registry (removes duplicates, overlap etc.)
3. Has clear enumerated value definitions if it is of type Code.
4. Is still being used (remove unused data elements)
5. Is being used consistently in various computer systems
6. Has adequate documentation on appropriate usage and notes
7. Documents the origin and sources of authority on each metadata element

[edit] Benefits of Data Stewardship

1. Consistent use of data management resource
2. Easy mapping of data between computer systems and exchange documents
3. Lower costs associated with migration to Service Oriented Architecture (SOA)

Assignment of each data element to a person sometimes seems like an unimportant process. But many groups have found that people are more likely to trust and use a system where there is a person they can call with question on each data element.

An example of data stewardship is the EPA metadata registry [1]. Note that each data element has a "POC" (point of contact).

[edit] See also

• Metadata
• Metadata registry
• Data element
• Data element definition
• Representation term
• metadata registry
• ISO/IEC 11179

[edit] References

• Universal Meta Data Models, by David Marco and Michael Jennings, Wiley, 2004, page 93-94 ISBN 0-471-08177-9
• Metadata Solution by Adrinne Tannenbaum, Addison Wesley, 2002, page 412
• Building and Managing the Meta Data Repository, by David Marco, Wiley, 2000, pages 61-62
• The Data Warehouse Lifecycle Toolkit, by Ralph Kimball et. el., Wiley, 1998, also briefly mentions the role of data steward in the context of data warehouse project management on page 70.