Worker: Database Designer
The database designer defines the tables, indexes, views, constraints,
triggers, stored procedures, tablespaces or storage parameters, and other
database-specific constructs needed to store, retrieve, and delete persistent
objects. This information is maintained in the Artifact:
Data Model.

Staffing 
The Database Designer must have a solid working knowledge of the following:
- Database and Object-Oriented Analysis and Design techniques
- System Architecture, including Database and System performance tuning, as well as
hardware and network workload balancing
- Database Administration
- an understanding of the implementation language and environment
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