Data source—provides data values
Data object—displays data values
Query—Retrieves data values from data sources and returns them to data objects
Properties that customize the specifications:
Database connection properties indicate data-source type, logon credentials, database applications, dimension formatting, and drill-through properties.
Data objects can be set to display types that feature specific options.
Queries can be explicit, requesting information on members, or dynamic, requesting information about all members that satisfy a set of criteria.
In Design Document mode, query definitions are referred to as data sources.