part, Part I: Foundations of Conceptual Modeling -- chapter 1 Conceptual Modeling for Simulation: Definition and Requirements / chapter 2 Complexity, Level of Detail, and Model Performance / chapter 3 Improving the Understanding of Conceptual Modeling / part, Part II: Conceptual Modeling Frameworks -- chapter 4 A Framework for Simulation Conceptual Modeling / chapter 5 Developing Participative Simulation Models: Framing Decomposition Principles for Joint Understanding / chapter 6 The ABCmod Conceptual Modeling Framework / chapter 7 Conceptual Modeling Notations and Techniques / chapter 8 Conceptual Modeling in Practice: A Systematic Approach / part, Part III: Soft Systems Methodology for Conceptual Modeling -- chapter 9 Making Sure You Tackle the Right Problem: Linking Hard and Soft Methods in Simulation Practice / part, Part IV: Software Engineering for Conceptual Modeling -- chapter 11 An Evaluation of SysML to Support Simulation Modeling / chapter 12 Development of a Process Modeling Tool for Simulation / chapter 13 Methods for Conceptual Model Representation / chapter 14 Conceptual Modeling for Composition of Model-Based Complex Systems / chapter 15 UML-Based Conceptual Models and V&V / part, Part V: Domain-Specific Conceptual Modeling -- chapter 16 Conceptual Modeling Evolution within US Defense Communities: The View from the Simulation Interoperability Workshop / chapter 17 On the Simplification of Semiconductor Wafer Factory Simulation Models / chapter 18 Conceptual Modeling: Past, Present, and Future................................. and Kathy Kotiadis