The document discusses concepts related to collaborative planning in virtual organizations. It defines aggregate collaborative planning as scheduling the macro phases of design and production to reach a common agreement through constant iteration between partners. The process involves a broker asking partners for proposals on modules, partners preparing proposals with details like costs and timelines, and the broker selecting the best proposal based on criteria and defining the final quotation. The goal is to optimize the solution for a business opportunity through cooperation and coordination between partners in a non-hierarchical negotiation process.