2. Objective:
S To inform users regarding the differences between
Cognos Transformer and Cognos TM1
S To provide users some key points to consider while
deciding between Cognos TM1 and Transformer
3. Primary OLAP Use:
COGNOS TRANSFORMER COGNOS TM1
Data Analysis / Slice and Dice What-If scenario modeling / Slice
and Dice
4. TM1 – Key Advantages:-
S In-memory processing(faster performance)
S Quickly load and merge large data volumes(intra day or
nightly)
S Load data from multiple sources (ODBC/Flat files)
S Multi cube architecture with shared dimensions
S On the fly changes to hierarchies and self-service ad-hic
analysis
S Can accommodate advanced calculations through rules & TI
S Easily create reports deployed through excel or Web
5. Key Features:-
TM1 Transformer
In memory data; 64 bit architecture 32 bit architecture leads to
leads to efficient memory use cube size limitations
Cubes calculate and aggregate on fly; Cubes are pre aggregated
Calculated cells are cached
Large data or calculation impact first Since aggregations happen
time load times during build, query
performance is consistent
Users can alter views, hierarchies or No write backs
contribute data on the fly and
recalculate
Pre-cached views lead to better query Query performance remains
performance consistent
6. When to choose:-
TM1 Transformer
Large data volumes Relatively smaller data footprint
Real time reporting expected Consistent query performance
expected
Write back capability required High number of concurrent ‘read’
users
Complex models; on the fly Pre-calculated data
calculations
