Distinguish between Cognos Dynamic cube and...

The main differences between the Cognos Dynamic cube and Transformer/TM1 cube and PowerPlay cube are:

Cognos Dynamic Cube	Transformer cube	PowerPlay cube
It supports caching like in-memory for performance	It also supports in-memory cube technology but with a writeback support	It supports file-based cube technology
It is ideal for applications like reading and analytics	It is ideal for applications like writing back, analysis, budgeting, planning etc.	It provides interactive analysis experience for the great number of users
It needs the structure like star or snowflake	It does not need the structure like Star or Snowflake	It also does not need the structure like Star or Snowflake
It serves in-memory aggregation	It serves file-based with aggregation	It serves aggregation only when demanded.

Distinguish between Cognos Dynamic cube and Transformer/TM1 cube and PowerPlay cube?