After conflict indication, detection, strategy selection and refinement, the agents are finally ready to negotiate. The negotiation consists of the initiator's and the partner's execution of their respective strategies.
It is possible for these strategies to clash in the sense that the agents will not be able to reach an agreement. In such a case either the conflict will not be resolved and a the design will halt with a failure, or one or both agents will change their strategies during the negotiation. The change of strategy is explained in section 6.7.