The document discusses qualitative analysis methods for dynamic systems. It covers: 1. Qualitative changes in socio-economic systems that can occur due to quantitative or structural changes over time. 2. Types of qualitative changes in a system, including due to added matter/energy, redistribution within the system, or changes to subsystems. 3. Examples of dynamic models analyzed qualitatively, including models of mobilization, arms race, and predator-prey populations.