Understanding how dyadic negotiations and group decision processes evolve over time requires specifying the basic elements of process, modeling the configuration of those elements over time, and providing a theoretical explanation for that configuration. We propose a bead metaphor for conceptualizing the basic elements of the group negotiation process and then "string" the beads of behavior in a helix framework to model the process by which group negotiations evolve. Our theorizing draws on the group decision development literature (e.g. Bales, 1953; Poole, 1981, 1983a, b; Poole & Roth, 1989a, b) as well as on the negotiation process literature (e.g. Gulliver, 1979; Morley & Stephenson, 1977). Our examples are from our Towers Market studies of negotiating groups.