A Contribution to a community is a sub-class of BusinessInteraction with CommunityMember and Community as involved PartyRoles. For this new type of BusinessInteraction, two new BusinessInteractionRoles are introduced: ContributionProviderRole, associated with the CommunityMember who is contributing, and the ContributionReceiverRole, associated with the Community.<br/>A Contribution might consist of BusinessInteraction item, a Resource, Service or Product is associated to, which is contributed to the Community.<br/>