Book contents
- Frontmatter
- Contents
- FOREWORD
- PREFACE
- INTRODUCTION
- 1 A DIAGRAM FOR OBJECT-ORIENTED PROGRAMS
- 2 CONSTRUCTING ABSTRACTIONS FOR OBJECT-ORIENTED APPLICATIONS
- 3 PLAYRGOUND: AN OBJECT ORIENTED SIMULATION SYSTEM WITH AGENT RULES FOR CHILDREN OF ALL AGES
- 4 A LABORATORY FOR TEACHING OBJECT-ORIENTED THINKING
- 5 THINK LIKE AN OBJECT
- 6 WHY STUDY SMALLTALK IDIOMS?
- 7 THE DREADED SUPER
- 8 ABSTRACT CONTROL IDIOMS
- 9 VALUEMODEL IDIOMS
- 10 COLLECTION IDIOMS
- 11 AN OBJECTWORKS\SMALLTALK 4.1 WRAPPER IDIOM
- 12 A SHORT INTRODUCTION TO PATTERN LANGUAGE
- 13 WHOLE LOTTA SMALLTALK: THE TECHNOLOGY
- 14 INSTANCE-SPECIFIC BEHAVIOR: HOW AND WHY
- 15 INSTANCE-SPECIFIC BEHAVIOR: DIGITALK IMPLEMENTATION AND THE DEEPER MEANING OF IT ALL
- 16 TO ACCESSOR OR NOT TO ACCESSOR
- 17 INHERITANCE: THE REST OF THE STORY
- 18 INHERITANCE: THE REST OF THE STORY (CONT.)
- 19 HELPER METHODS AVOID UNWANTED INHERITANCE
- 20 IT'S NOT JUST THE CASE
- 21 CRC: FINDING OBJECTS THE EASY WAY
- 22 DEATH TO CASE STATEMENTS
- 23 WHERE DO OBJECTS COME FROM?
- 24 PATTERNS AND SOFTWARE DEVELOPMENT
- 25 DISTRIBUTED SMALLTALK
- 26 WHERE DO OBJECTS COME FROM? FROM VARIABLES AND METHODS
- 27 BIRDS, BEES, AND BROWSERS—OBVIOUS SOURCES OF OBJECTS
- 28 USING PATTERNS: DESIGN
- 29 PATTERNS GENERATE ARCHITECTURES
- 30 SIMPLE SMALLTALK TESTING
- 31 ARCHITECTURAL PROTOTYPE: TELEVISION REMOTE CONTROL
- 32 DEMAND LOADING FOR VISUALWORKS
- 33 GARBAGE COLLECTION REVEALED
- 34 WHAT? WHAT HAPPENED TO GARBAGE COLLECTION?
- 35 SUPER + 1
- 36 CLEAN CODE: PIPE DREAM OR STATE OF MIND?
- 37 A MODEST META PROPOSAL
- 38 USES OF VARIABLES: TEMPS
- 39 VARIABLES OF THE WORLD
- 40 PATTERNS 101
- 41 FAREWELL AND A WOOD PILE
- AFTERWORD
- INDEX
21 - CRC: FINDING OBJECTS THE EASY WAY
Smalltalk Report, November–December, 1993
Published online by Cambridge University Press: 04 August 2010
- Frontmatter
- Contents
- FOREWORD
- PREFACE
- INTRODUCTION
- 1 A DIAGRAM FOR OBJECT-ORIENTED PROGRAMS
- 2 CONSTRUCTING ABSTRACTIONS FOR OBJECT-ORIENTED APPLICATIONS
- 3 PLAYRGOUND: AN OBJECT ORIENTED SIMULATION SYSTEM WITH AGENT RULES FOR CHILDREN OF ALL AGES
- 4 A LABORATORY FOR TEACHING OBJECT-ORIENTED THINKING
- 5 THINK LIKE AN OBJECT
- 6 WHY STUDY SMALLTALK IDIOMS?
- 7 THE DREADED SUPER
- 8 ABSTRACT CONTROL IDIOMS
- 9 VALUEMODEL IDIOMS
- 10 COLLECTION IDIOMS
- 11 AN OBJECTWORKS\SMALLTALK 4.1 WRAPPER IDIOM
- 12 A SHORT INTRODUCTION TO PATTERN LANGUAGE
- 13 WHOLE LOTTA SMALLTALK: THE TECHNOLOGY
- 14 INSTANCE-SPECIFIC BEHAVIOR: HOW AND WHY
- 15 INSTANCE-SPECIFIC BEHAVIOR: DIGITALK IMPLEMENTATION AND THE DEEPER MEANING OF IT ALL
- 16 TO ACCESSOR OR NOT TO ACCESSOR
- 17 INHERITANCE: THE REST OF THE STORY
- 18 INHERITANCE: THE REST OF THE STORY (CONT.)
- 19 HELPER METHODS AVOID UNWANTED INHERITANCE
- 20 IT'S NOT JUST THE CASE
- 21 CRC: FINDING OBJECTS THE EASY WAY
- 22 DEATH TO CASE STATEMENTS
- 23 WHERE DO OBJECTS COME FROM?
- 24 PATTERNS AND SOFTWARE DEVELOPMENT
- 25 DISTRIBUTED SMALLTALK
- 26 WHERE DO OBJECTS COME FROM? FROM VARIABLES AND METHODS
- 27 BIRDS, BEES, AND BROWSERS—OBVIOUS SOURCES OF OBJECTS
- 28 USING PATTERNS: DESIGN
- 29 PATTERNS GENERATE ARCHITECTURES
- 30 SIMPLE SMALLTALK TESTING
- 31 ARCHITECTURAL PROTOTYPE: TELEVISION REMOTE CONTROL
- 32 DEMAND LOADING FOR VISUALWORKS
- 33 GARBAGE COLLECTION REVEALED
- 34 WHAT? WHAT HAPPENED TO GARBAGE COLLECTION?
- 35 SUPER + 1
- 36 CLEAN CODE: PIPE DREAM OR STATE OF MIND?
- 37 A MODEST META PROPOSAL
- 38 USES OF VARIABLES: TEMPS
- 39 VARIABLES OF THE WORLD
- 40 PATTERNS 101
- 41 FAREWELL AND A WOOD PILE
- AFTERWORD
- INDEX
Summary
This article gives the longer version of the story I told above in introducing the original CRC article. I was glad Marie Lenzi gave me the chance to write it, because I was able to make an explicit public statement that Ward invented CRC, even though my name came first on the original article.
This isn't another introduction to objects with CRC. It is a philosophical look back at CRC's place in the grand scheme of things. It presents what CRC is under the hood, where it came from, and what it is good for.
NOT A METHODOLOGY
What is an article on CRC doing in an issue on methodologies? CRC isn't a methodology. What? Your consultants told you otherwise? Well, as the narrator at the beginning of any number of Disney movies would say: I was there at the beginning, so let me tell you what really happened.
PERSPECTIVE
Before I get rolling, let me say that CRC was really Ward Cunningham's idea. As you'll see later in the article, his was the insight that really tied together several strands we had been pursuing together. You'll also see how I got my name first on the paper that introduced it to the public eye. Really, though—Ward did it, I helped. I hope that sets the record straight. Now, back to your regularly scheduled article.
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- Kent Beck's Guide to Better SmalltalkA Sorted Collection, pp. 205 - 212Publisher: Cambridge University PressPrint publication year: 1997
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