Because Motorprise is a business-to-business site, rather than business to consumer, it must track and record information not only about each individual user, but also about each customer organization and each of its subgroups.
We created multiple tiers of organizational structure for Motorprise:
Overall Company Organization
Division/Business Unit
Group (usually a department)
Individual
The chapter Defining Motorprise User and Organization Profiles explains in detail how we did this.
We also created various customer roles in Motorprise for buyers, approvers, and administrators. Individuals from buying organizations are assigned roles and are associated with a parent organization. They inherit various properties from that parent organization. You can view individual profiles in the People and Organizations > Users section in the ATG Control Center.