Table of Contents
Chapter 3: From Philosophy toCulture
Three: Objects must be composable..............................................................................77
Four: Distributed cooperation and communication must replace hierarchical
centralized control as an organizational paradigm....................................................80
Object Principles—Software Principles..................................................................................81
Cooperating Cultures.............................................................................................................85
Chapter 4: Metaphor: Bridge to the Unfamiliar.............................................................................88
Overview...............................................................................................................................88
The Lego Brick Metaphor.......................................................................................................92
The Object-as-Person Metaphor............................................................................................96
Software as Theater; Programmers as Directors.................................................................102
Ants, Not Autocrats..............................................................................................................104
Two Human-Derived Metaphors..........................................................................................106
Inheritance....................................................................................................................106
Responsibility................................................................................................................107
Thinking Like an Object.......................................................................................................108
Chapter 5: Vocabulary: Words toThink With..............................................................................109
Overview.............................................................................................................................109
Essential Terms...................................................................................................................112
Object............................................................................................................................112
Responsibility................................................................................................................114
Message........................................................................................................................117
Interface (Protocol)........................................................................................................118
Extension Terms..................................................................................................................119
Collaboration and Collaborator.....................................................................................119
Class.............................................................................................................................120
Class Hierarchy (Library)..............................................................................................121
Abstract/Concrete.........................................................................................................121
Inheritance....................................................................................................................122
Delegation.....................................................................................................................126
Polymorphism...............................................................................................................127
Encapsulation................................................................................................................128
Component....................................................................................................................129
Framework....................................................................................................................129
Pattern..........................................................................................................................130
Implementation Terms.........................................................................................................131
Method..........................................................................................................................131
Variable.........................................................................................................................132
Late/Dynamic Binding...................................................................................................132
Auxiliary Concepts...............................................................................................................133
Domain..........................................................................................................................134
Microsoft ObjectThinking
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