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Overview 113

• Data stewardship for enterprise subject area data will be established.
• IT and business data stewards will need to show unified support for this principle.
• Enterprise data management policies must be defined, communicated, and followed.
• The enterprise information resource must be managed with an approach that requires a centralized data
management function (central authority). This function must be clearly responsible for ensuring a single,
authoritative source exists for enterprise information.
• Replication and extraction must only be used as required for optimizing performance or for supporting
controlled, local data updates. A governance process for replication and extraction will be required.

The following are the two aforementioned example list of principles from two organization in the
same industry. Figure 10-6 may have one or two extra principles, but this organization felt that policies
would not hold up unless made a part of principles.
Tips for Success

Some of the discussions around principles can become dry. Even the most enthusiastic data architect or
business member of the team can start to nod off. Keep review sessions short. Also, divide the work.

FIGURE 10-6
Sample Principles.