Information of entities are often aggregated in one space (entity doctypes). Typical entity doctypes are Resource, Organization, and Person. If instances of these types are not exclusively related to a given subject, it is typically wise to collect all instances of these doctypes in one space.

Resources may form a library, organizations and persons an address book. These may be one or two spaces, dependent on your information architecture.

Attachment spaces typically use index spaces and are themselves delegate spaces.