OrganizationAffiliation.organization Short Description:  Organization where the role is available Definition: Organization where the role is available (primary organization/has members). Comments : For example, a Spotless Cleaning Services (participatingOrganization) is a supplier (code) to General Hospital (organization).   Similarly, General Hospital (participatingOrganization) is a member (code) of Eastern HIE (organization).  If there are two organizations that do not have a directional relationship, there would normally be a third organization that represents the joint partnership, and the two organizations would have a relationship to that joint Organization via two OrganizationAffiliations.   OrganizationAffiliation.participatingOrganization Short Description:  Organization that provides or performs the role to the OrganizationAffiliation.organization (e.g. providing services or is a member of) Definition: The Participating Organization provides/performs the role(s) defined by the code to the Primary Organization (e.g. providing services or is a member of). Comments : See comments for OrganizationAffiliation.organization. 8.31.1 Scope and Usage  A relationship between 2 organizations over a period of time, where the entities are separate business entities. The relationship can optionally include details of locations/services from the participating organization. The OrganizationAffiliation enables defining non-hierarchical relationships between organizations. For example: One organization may provide services to another organization e.g. An agency service (OrganizationAffiliation.participatingOranization) provides casual staff, a radiology service, a diagnostic lab, catering services, community care services etc. to a hospital (OrganizationAffiliation.organization) Two or more organizations may form a partnership or joint venture An organization may be a member of an association, but not owned by it e.g. a hospital (OrganizationAffiliation.participatingOranization)   is a member the American Hospital Association, a hospital is a member of a health information exchange network Spotless Cleaning Services (participatingOrganization) is a supplier (code) to General Hospital (organization) General Hospital (participatingOrganization) is a member (code) of Eastern HIE (organization)   What is the difference between organization and participatingOrganization? The definitions are not clear in the specification. Could these definitions be improved. Maybe add examples or just make the descriptions more explanatory.