Understanding Setting Up Data Source Definitions
These data source types require just one data source definition for each release:
Object Librarian
System
Data Dictionary
Local
These data source types might require you to define multiple data sources for each type to support the business requirements:
Business Data (production, test, CRP, and PS910 demo data)
Distributed Processing (one per logic server)
Server Map (one per logic server)
Central Objects (one per path code)
Control Tables