3)Invent options for mutual gain-Generate options for mutual gain and solve problems. Fisher and Ury identify four techniquesfor overcoming obstacles and generating creative options in a negotiation. First it is importantto separate the invention process from the evaluation stage. The parties should come togetherand brainstorm for all possible solutions to the problem. Wild and creative proposals areencouraged. There are four types of thinking: stating the problem, analyzing the problem,considering general approaches, and considering specific actions.