There can easily be multiple subcontractor organizations on a project or program.
An organization is a subcontractor organization from the
viewpoint of the development organization, not the viewpoint
of the customer organization. In fact, the development
organization is best modeled as a customer organization from
the viewpoint of the subcontractor organization.
Every project does not involve a subcontractor
organization working for the development organization. Do not
use this organization unless a significant subcontractor relationship exists.
Partner organizations and subcontractor organizations are
not the same roles, although it is possible for typically
different parts of the same business to play both.