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IBM Cognos TM1 Developer's Certification Guide by James D. Miller

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Summary

In this chapter, we have discussed the basics of Cognos TM1 virtual and lookup cubes focusing on what you will need to know and be comfortable with before taking the current IBM Cognos TM1 Developer (Test COG-310) certification exam. We have also looked at some practical examples.

In Chapter 8, Time Considerations, we will discuss the importance and use of the time dimension in Cognos TM1.

Two minute drill

There are some important points about virtual and lookup cubes:

  • There are four types of cubes in Cognos TM1. They are as follows:
    • Standard cubes
    • Control cubes
    • Virtual cubes
    • Lookup cubes
  • A standard Cognos TM1 cube is referred to as a hard cube or a cube where data is actually loaded and resides.
  • TM1 control cubes by definition, are hard cubes that ...

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