1. A system, comprising: a supply chain network that produces one or more items comprising: one or more sites comprising one or more shipping locations for the one or more items; one or more resources comprising one or more capacities; one or more buffers; and a demand from one or more trading partners for the one or more items; and a non-transitory storage medium having a first and second set of one or more meta-model elements stored therein, the one or more meta-model elements comprising: a first set of one or more meta-model elements comprising one or more supply chain elements, the one or more supply chain elements comprising one or more site supply chain elements representing the one or more sites, one or more resource supply chain elements representing the one or more resources, and one or more buffer supply chain elements representing the one or more buffers; a second set of one or more meta-model elements that represent the semantics of a collaboration standard, the semantics comprising a nature of a demand signal representing the demand and a software protocol used to communicate the demand signal; the one or more meta-model elements incorporated into a trading partner agreement comprising a negotiated meta-model that describes a trading partner agreement between two or more trading partners as to collaborations between the trading partners, the negotiated meta-model describing a machine-actionable private collaboration standard unique to the trading partners for collaboration between the trading partners; a non-transitory storage medium having a meta-model negotiation service stored therein and configured to: receive over a computer network an indication that two or more trading partners wish to negotiate the collaboration standard unique to the trading partners for collaborations between the trading partners; provide access to the first and second set of meta-model elements; receive over the computer network selections of one or more of the first and second set of meta-model elements for negotiation and incorporation into the negotiated meta-model; facilitate negotiation of the selected meta-model elements between the trading partners, wherein the negotiated meta-model includes semantics capable of being understood by collaboration software associated with each of the trading partners independent of any modification of the collaboration software, the collaboration software of the two or more enterprises automatically collaborates according to the standard for collaborations based on the negotiated meta-model; incorporate negotiated meta-model elements into the negotiated meta-model for collaborations between the trading partners; and communicate the negotiated meta-model over the computer network to the trading partners for collaborations between the trading partners based on the private standard unique to the trading partners for collaborations reflected in the negotiated meta-model.