Community
A Community is grouping of zero or more Communities and Domains. A community has a globally unique name. It usually defines a delineated part of stewardship.
A Sub-community is a community that has a parent community.
A Root Community is a community without a parent community.
For example, a (root) community named 'The ACME Enterprise' groups eight sub-communities such as 'Compliance' and 'Data Operations'; and one domain named 'Customer Glossary'.
