Wondering about the different types of provisioning models? A new matrix was just published that defines the three provisioning models: Basic, Standard, and Advanced.
This naming convention replaces the terms SMB and Enterprise modes. Why? SMB was confusing because it refers to Small-Medium Business - when in actuality, there are enterprise-sized companies that have activated in SMB/Basic mode and SMB-sized companies that have activated in Enterprise/Standard/Advanced mode. 
Check it out: Understanding Provisioning Models - Basic, Standard, & Advanced