16. The system of claim 14 , wherein the meta-model elements within the negotiated meta-model comprise one or more of the following: one or more role types; one or more dimensions each comprising a supply chain element; one or more dimensionalities each comprising a combination of supply chain elements; access of one or more role types to one or more particular dimensionalities; one or more collaborative transaction types relative to one or more particular dimensionalities; one or more shared operations visible to the trading partners; and one or more temporal structures of collaborative transactions to be executed based on the negotiated meta-model.
16. The system of claim 14 , wherein the meta-model elements within the negotiated meta-model comprise one or more of the following: one or more role types; one or more dimensions each comprising a supply chain element; one or more dimensionalities each comprising a combination of supply chain elements; access of one or more role types to one or more particular dimensionalities; one or more collaborative transaction types relative to one or more particular dimensionalities; one or more shared operations visible to the trading partners; and one or more temporal structures of collaborative transactions to be executed based on the negotiated meta-model. 17. The system of claim 16 , wherein meta-model elements specifying a collaborative transaction type relative to a particular dimensionality each comprise one or more of the following: a structure of the transaction; data elements associated with the transaction; a state model describing a life cycle of the transaction; access that a role type has to data elements of the transaction relative to a state of the transaction; actions that a role type can execute on the transaction relative to a state of the transaction; and whether the transaction is a system of record or whether synchronization must occur with another system of record.