This document discusses different theoretical perspectives and models of organization. It begins by defining key concepts like theory, concepts, and abstraction. It then contrasts modernist, symbolic-interpretive, and postmodern perspectives based on their underlying ontologies and epistemologies. Four models of organization are presented: the rational/formal model which views organizations like machines; the political/factional model which sees organizations as arenas of competition; the caring model which focuses on relationships; and the civic model which emphasizes deliberation and the common good.