But as data pass into the data warehouse, the system of record also passes into the data
warehouse. The difference is the timeliness of the data. Data in the operational
environment are accurate as of the moment of access. Stated differently, data in the
operational environment are up to the second accurate data. But when the system of
record data moves to the data warehouse, the system of record data becomes accurate as
to the moment in history that is reflected in the data warehouse. The system of record is
historically accurate in the data warehouse.

Different Perspectives of Data

One of the most important functions of the data warehouse is the ability to serve as a
foundation for different organizations to look at the same data differently and still have
the same foundation of data.

Fig. 12.1.10 shows this capability.

Chapter 12.1: Operational Analytics