Dr. Steven Metz presents a typology for classifying non-state violent groups based on dimensions like their level of formality, ideology, goals, and reliance on violence. The typology ranges from informal/simple to formal/complex and from limited goals to revolutionary goals. Generally, groups become less ideological, have less expansive objectives, and rely more on formal structures and constituency-serving behavior over time. Fragmentation and decreased linkages are also common patterns of development. The document discusses how to potentially influence groups to become less threatening by propelling them toward increased formalization or weaker by encouraging fragmentation.