There are two Generic Goals (required components) for each Process Area in the TMMi.
Points to remember:
Note that the Generic Goal from CMMI, GG1 Achieve Specific Goals, is not taken into account since this only relates to the continuous representation of the CMMI and therefore has no relevance to the staged representation of TMMi. Otherwise the numbering scheme of the CMMI is adopted fully to avoid confusion for organisations using both CMMI and TMMi.
The level of capability being targeted will determine which Generic Goals and Practices are applicable.
When trying to reach Maturity Level 2 the Process Areas at Level 2 and Generic Goal 2 only (with its accompanying Generic Practices) are applicable.
Generic Goal 3 is only applicable when trying to reach Maturity Level 3 or higher. This means that when you have already achieved a Maturity Level 2 rating, to achieve the Maturity Level 3 rating you must return to Maturity Level 2 Process Areas and apply Generic Goal 3 and its accompanying Generic Practices.