Product : AppScale, Eucalyptus/Current, 4.4.5
Feature : Multi-Tenancy, Regulatory, Security & Compliance
Content Owner:  Bhagyashri (Shri) Bhagvat
Summary
User identities are organized into accounts and are the equivalent to the AWS IAM account alias.
Details
http://docs.eucalyptus.cloud/eucalyptus/4.4.5/index.html#iam-guide/managing_identities.html