ABSTRACT
Group processes occur simultaneously on the group level and on the individual level. In many cases, processes of the social supersystem and of the group's social subsystems are also involved. Many different viewpoints must be brought together to build a comprehensive and realistic—or realistic because comprehensive—group theory. Something like the "unity of time, location, and action," old criteria from the theory of drama may play a role. D. M. Wegner's theory of "transactive memory" can serve as a point of departure. Of course, role theory is a very broad set of concepts. The chapter presents the outlines of a frame theory. It demonstrates with several examples that it has a certain integrative power and makes missing points visible. Theories and models that concern partial action processes might also receive their coordinated place in the multilevel order of group action.
