Part I. Foundations of Systems Understanding.- Principles of Systems Science.- System Ontology.- System Language.- Fundamentals of Systems Analysis & Design.- Part II. Analysis of Systems.- The Process of Systems Analysis.- Demonstrating the Analysis of Various Kinds of Systems: How the Ontology is Universal.- Examining the Knowledgebase.- Detailed Analysis for Understanding - A Look at a Biophysical Economics System.- Part III. Modelling of a Complex System.- Generating Models from the Knowledgebase.- Testing and Verifying Models and the Knowledgebase.- Part 4. Design for Free.- Governance Systems.- Model Scenarios and the Construction of Policies.- Design Specification.