Model-Based Development

Preface xiii Acknowledgments xix About the Author xxi Introduction xxiii Part I: The Roots of Object-Oriented Development 1 Chapter 1: Historical Perspective 3 History 3 Structured Development 5 Technical Innovation 17 Chapter 2: Object Technology 29 Basic Philosophy 30 Breadth-First Processing (aka Peer-to-Peer Collaboration) 44 Chapter 3: Generalization, Inheritance, Genericity, and Polymorphism 53 Generalization 54 Inheritance 56 Polymorphism 57 Genericity 61 Chapter 4: MBD Road Map 63 Problem Space versus Computing Space 63 Maintainability 69 Chapter 5: Modeling Invariants 77 So Just What Is Modeling Invariants? 78 The Rewards 81 Examples 84 Chapter 6: Application Partitioning 105 Why Do We Care? 105 Basic Concepts of Application Partitioning 107 Identifying Subsystems 119 Bridges 122 Describing Subsystems 127 An Example: Pet Care Center 130 Processes 145 Part II: The Static Model 151 Chapter 7: Road Map to Part II 153 What Is the Static Model? 154 Knowledge versus Behavior 156 Practical Note 158 Chapter 8: Classes 161 Abstract Representation 161 Class Notation 167 Identifying Classes and Their Responsibilities 169 Examples 172 Using Sequence and Collaboration Diagrams 186 Chapter 9: Class Responsibilities 191 Attributes: What the Objects of a Class Should Know 191 Operations and Methods: What an Object Must Do 197 Process 207 Examples 209 Chapter 10: Associations 233 Definitions and Basics 234 Notation 239 The Nature of Logical Connections 242 Conditionality 250 Multiplicity 255 Constraints 261 Association Classes 264 Identifying Associations 269 Examples 273 Chapter 11: Referential and Knowledge Integrity 279 Knowledge Integrity 280 Referential Integrity 289 Chapter 12: Generalization Redux 299 Subclassing 300 Multi-directional Subclassing, Multiple Inheritance, and Composition 317 Alternatives to Generalization 328 Chapter 13: Identifying Knowledge 333 What Is the Nature of OO Knowledge? 334 Abstracting Aggregates 335 Picking the Right Abstraction 341 Does

H.S. Lahman wrote his first software program on a plug board in 1957. That was such a character-building experience that he spent the next decade as an exploration geophysicist working in the free world's major swamps, deserts, tundras, and jungles. Lahman then returned to school to learn about economics, operations research, and computing. For the next three decades he developed software in MIS, scientific, and R-T/E environments. Starting in 1982, he became a pioneering advocate of object-oriented development and other software quality and development process innovations.