CMMI V2.0 is an integrated product suite that comprises of the model itself with three different views currently - Development, Services and Supplier Management.

The architecture of CMMII V2.0 model includes a set of specific Capability Areas that have specific Practice Areas under them.

The Practice Areas in V2.0 are categorized into common practice areas and view-specific practice areas.

Common Practice Areas:

1. Requirements Development and Management (RDM)
2. Process Quality Assurance (PQA)
3. Verification and Validation (VV)
4. Peer Reviews(PR)
5. Estimating (EST)
6. Planning (PLAN)
7. Supplier Agreement Management (SAM)
8. Monitor and Control (MC)
9. Risk and Opportunity Management (RSK)
10. Organizational Training (OT)
11. Causal Analysis and Resolution (CAR)
12. Decision Analysis and Resolution (DAR)
13. Configuration Management (CM)
14. Governance (GOV)
15. Implementation Infrastructure (II)
16. Process Management (PCM)
17. Process Asset Development (PAD) 
18. Managing Performance and Measurement (MPM)

Development View-specific Process Areas:

1. Technical Solution (TS)
2. Product Integration (PI)

Services View-specific Process Areas:

1. Service Delivery Management (SDM)
2. Strategic Service Management (SSM)
3. Incident Resolution and Prevention (IRP)
4. Continuity (CON)

Supplier Management View-specific Process Areas:

1. Supplier Source Selection (SSS)

The model architecture lends a lot of flexibility to the adoption of CMMI V2.0 model by an organization.

In addition, an organization can even create and use a customized view of the model.

In summary, it can be said that the arrangement of Practice Areas in the CMMI V2.0 architecture is a good move.

The CMMI V2.0 architecture should help increase the adoption of CMMI by organizations and more importantly enhance the value organizations derive from the use of CMMI.