Object Thinking

by West, David

• ISBN13: 9780735619654
• ISBN10: 0735619654
• Edition: 1st
• Format: Paperback
• Copyright: 2019-07-13
• Publisher: Microsoft Press

Summary

The foundation of all object-oriented software design, including agile methods such as extreme programming, is object thinking. But many developers have not mastered its underlying concepts and principles-relying on methodology and process instead of fully exploiting the power of object thinking in software design. In this essential, high-level reference, well-known object technologist David West provides a deep historical and contextual discussion of object thinking, including the behavioral approaches to object discovery and design. Readers will master the fundamental principles and learn how to apply object thinking to improve software development at every phase of the process.

Author Biography

Dave West would like to describe himself as sheik geek. Unfortunately no one else would describe him in that way. They would say he is a professional Englishman who likes to talk about software development best practices with the passion and energy of an evangelical preacher. Recently Dave has moved to Ivar Jacobson Consulting, where he runs the Americas and can combine his desire to talk about software development and spread the word on rugby and football, and argue that cricket is more exciting that baseball. Before running the Americas for Ivar Jacobson Consulting, Dave worked for a number of years at Rational Software (now a part of IBM). Dave held many positions at Rational and then IBM, including Product Manager for RUP where he introduced the idea of process plug-ins and agility to RUP. Dave still laments the days when he use to sit in a cube and write software in the city of London. This is where he believes he cut his teeth writing big insurance systems with nothing but a green screen and a process flow chart.

Dave can be contacted at [e-mail], and if he is not with customers or drinking warm beer with his friends in Boston, he will email you back.

Table of Contents

Acknowledgments	p. vii
Preface	p. ix
Introduction	p. xvii
Object Thinking	p. 1
Observing the Object Difference	p. 2
Object Thinking = Think Like an Object	p. 12
Problem = Solution	p. 16
Object Thinking and Agile Development Practices	p. 18
Values	p. 19
Selected Practices	p. 22
Thinking Is Key	p. 24
Software Development Is a Cultural Activity	p. 25
Onward	p. 30
Philosophical Context	p. 33
Philosophy Made Manifest--Dueling Languages	p. 36
SIMULA	p. 38
C++	p. 41
Smalltalk	p. 43
Formalism and Hermeneutics	p. 48
Postmodern Critiques	p. 58
From Philosophy to Culture	p. 63
Four Presuppositions	p. 66
Everything is an object	p. 66
Simulation of a problem domain drives object discovery and definition	p. 71
Objects must be composable	p. 78
Distributed cooperation and communication must replace hierarchical centralized control as an organizational paradigm	p. 81
Object Principles--Software Principles	p. 83
Cooperating Cultures	p. 87
Metaphor: Bridge to the Unfamiliar	p. 91
The Lego Brick Metaphor	p. 96
The Object-as-Person Metaphor	p. 101
Software as Theater; Programmers as Directors	p. 108
Ants, Not Autocrats	p. 112
Two Human-Derived Metaphors	p. 113
Inheritance	p. 114
Responsibility	p. 115
Thinking Like an Object	p. 116
Vocabulary: Words to Think With	p. 117
Essential Terms	p. 121
Object	p. 121
Responsibility	p. 123
Message	p. 128
Interface (Protocol)	p. 129
Extension Terms	p. 130
Collaboration and Collaborator	p. 130
Class	p. 130
Class Hierarchy (Library)	p. 132
Abstract/Concrete	p. 133
Inheritance	p. 133
Delegation	p. 139
Polymorphism	p. 140
Encapsulation	p. 141
Component	p. 142
Framework	p. 142
Pattern	p. 143
Implementation Terms	p. 145
Method	p. 145
Variable	p. 145
Late/Dynamic Binding	p. 146
Auxiliary Concepts	p. 147
Domain	p. 147
Business Requirement	p. 149
Business Process Reengineering	p. 149
Application	p. 149
Method, Process, and Models	p. 151
Two Decades of Object Methodology	p. 153
Purpose and Use of Method	p. 159
A Syncretic Approach	p. 164
Models	p. 168
Semantic Net	p. 169
Object Cubes	p. 173
Interaction Diagram	p. 175
Static Relation Diagram	p. 178
Object State Chart	p. 181
Discovery	p. 183
Domain Understanding	p. 185
Domain Anthropology	p. 186
Object Definition	p. 200
Heuristics	p. 212
Thinking Toward Design	p. 219
Object Internals	p. 220
Knowledge Required	p. 221
Message Protocol	p. 227
Message Contracts	p. 234
State Change Notification	p. 236
Object Appearance	p. 240
Occasions Requiring an Appearance	p. 241
Object State, Object Constraints	p. 245
All the World's a Stage	p. 247
Static Relationships	p. 251
Is-a-Kind-of Relationship	p. 251
Collaborates-with Relationship	p. 254
Situational Relationship	p. 256
Dynamic Relationships	p. 273
Scripts	p. 274
Event Dispatching	p. 277
Constraints	p. 281
Self-Evaluating Rules	p. 282
Implementation	p. 286
Methods	p. 287
Knowledge Maintenance Objects	p. 288
Development at the Speed of Thought	p. 291
Wrapping Up	p. 293
Vexations	p. 294
The Impedance Mismatch Problem	p. 294
A Problem with GUIs	p. 297
Extensions	p. 299
Frameworks	p. 299
Object-Based Evocative Architecture	p. 302
Provocation--The Future of Objects	p. 305
Bibliography	p. 309
Index	p. 321
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