This document discusses design methodologies and metadesign. It defines methodology as the critical study of methods from a theoretical perspective, while method refers to techniques used to achieve results. Design methodologies are based on worldview, theory, and experience. Agile methodology focuses on iterations and user dialogue. Metadesign involves designers redesigning their own processes to deal with new complex problems. It discusses abstraction levels, diagrams, parametric design, emergence, and criticisms of excessive formalization through technology. Alternative approaches like Arquitetura Livre emphasize informalization over formalization and multiple perspectives.