The customer is questioning the necessity to have a data warehouse in place. They want to
run OBIEE against various transactional systems. Identify the two limitations.
A.
Dataquality issues might emerge, due to missing data cleansing.
B.
Business issues are depending on real-time data.
C.
TheBIserver cannot integrate various sourcesin one metadata model.
D.
Operational system might be overburdened with analytical requests resulting in had
performance for transactional processes.
A) : clean in staging layer , normalizing in master layer, modeling start/snowflake/multi-dimensional in performance layer. Directly sourcing on transactional database without clean stage, some problem might emerge.
D) : transactional database normally is based on 3NF, which doesn’t fit the querying on star schema modeling.