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Managing Technical Debt: Reducing Friction in Software Development
- By Philippe Kruchten, Robert Nord, Robert Nord, Ipek Ozkaya
- Published Jun 6, 2019 by Addison-Wesley Professional. Part of the SEI Series in Software Engineering series.
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About
Features
- Gain a practical understanding of technical debt, its sources, causes, and consequences
- Define your most effective strategies for managing technical debt
- Select tactics, tools, and techniques to implement your strategy
- Integrate technical debt management into your current agile, lean, or refactoring methodologies
- Learn from experts at the Software Engineering Institute, the world’s leader in software engineering and cybersecurity since 1984
Description
- Copyright 2019
- Dimensions: 7" x 9-1/8"
- Pages: 272
- Edition: 1st
- Book
- ISBN-10: 0-13-564593-X
- ISBN-13: 978-0-13-564593-2
“This is an incredibly wise and useful book. The authors have considerable real-world experience in delivering quality systems that matter, and their expertise shines through in these pages. Here you will learn what technical debt is, what is it not, how to manage it, and how to pay it down in responsible ways. This is a book I wish I had when I was just beginning my career. The authors present a myriad of case studies, born from years of experience, and offer a multitude of actionable insights for how to apply it to your project.”
–Grady Booch, IBM Fellow
Master Best Practices for Managing Technical Debt to Promote Software Quality and Productivity
As software systems mature, earlier design or code decisions made in the context of budget or schedule constraints increasingly impede evolution and innovation. This phenomenon is called technical debt, and practical solutions exist. In Managing Technical Debt, three leading experts introduce integrated, empirically developed principles and practices that any software professional can use to gain control of technical debt in any software system.
Using real-life examples, the authors explain the forms of technical debt that afflict software-intensive systems, their root causes, and their impacts. They introduce proven approaches for identifying and assessing specific sources of technical debt, limiting new debt, and “paying off” debt over time. They describe how to establish managing technical debt as a core software engineering practice in your organization.
- Discover how technical debt damages manageability, quality, productivity, and morale–and what you can do about it
- Clarify root causes of debt, including the linked roles of business goals, source code, architecture, testing, and infrastructure
- Identify technical debt items, and analyze their costs so you can prioritize action
- Choose the right solution for each technical debt item: eliminate, reduce, or mitigate
- Integrate software engineering practices that minimize new debt
Managing Technical Debt will be a valuable resource for every software professional who wants to accelerate innovation in existing systems, or build new systems that will be easier to maintain and evolve.
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Table of Contents
Foreword xiii
Preface xv
Part I: Exploring the Technical Debt Landscape 1
Chapter 1: Friction in Software Development 3
The Promise of Managing Technical Debt 3
Technical Debt A-B-C 5
Examples of Technical Debt 6
Your Own Story About Technical Debt? 11
Who Is This Book For? 12
Principles of Technical Debt Management 13
Navigating the Concepts of the Book 14
What Can You Do Today? 16
For Further Reading 17
Chapter 2: What Is Technical Debt? 19
Mapping the Territory 19
The Technical Debt Landscape 20
Technical Debt Items: Artifacts, Causes, and Consequences 22
Principal and Interest 24
Cost and Value 27
Potential Debt versus Actual Debt 32
The Technical Debt Timeline 33
What Can You Do Today? 35
For Further Reading 35
Chapter 3: Moons of Saturn–The Crucial Role of Context 37
“It Depends…” 37
Three Case Studies: Moons of Saturn 39
Technical Debt in Context 44
What Can You Do Today? 48
For Further Reading 48
Part II: Analyzing Technical Debt 49
Chapter 4: Recognizing Technical Debt 51
Where Does It Hurt? 51
What Are the Visible Consequences of Technical Debt? 54
Writing a Technical Debt Description 55
Understanding the Business Context for Assessing Technical Debt 58
Assessing Artifacts Across the Technical Debt Landscape 60
What Can You Do Today? 63
For Further Reading 64
Chapter 5: Technical Debt and the Source Code 65
Looking for the Magic Wand 65
Understand Key Business Goals 68
Identify Questions About the Source Code 70
Define the Observable Measurement Criteria 72
Select and Apply an Analysis Tool 75
Document the Technical Debt Items 76
Then Iterate 78
What Happens Next? 79
What Can You Do Today? 80
For Further Reading 81
Chapter 6: Technical Debt and Architecture 83
Beyond the Code 83
Ask the Designers 86
Examine the Architecture 89
Examine the Code to Get Insight into the Architecture 93
The Case of Technical Debt in the Architecture of Phoebe 94
What Can You Do Today? 101
For Further Reading 101
Chapter 7: Technical Debt and Production 103
Beyond the Architecture, the Design, and the Code 103
Build and Integration Debt 106
Testing Debt 109
Infrastructure Debt 110
The Case of Technical Debt in the Production of Phoebe 110
What Can You Do Today? 113
For Further Reading 113
Part III: Deciding What Technical Debt to Fix 115
Chapter 8: Costing the Technical Debt 117
Shining an Economic Spotlight on Technical Debt 117
Refine the Technical Debt Description 119
Calculate the Cost of Remediation 121
Calculate the Recurring Interest 122
Compare Cost and Benefit 123
Manage Technical Debt Items Collectively 127
What Can You Do Today? 129
For Further Reading 130
Chapter 9: Servicing the Technical Debt 131
Weighing the Costs and Benefits 131
Paths for Servicing Technical Debt 136
The Release Pipeline 142
The Business Case for Technical Debt as an Investment 143
What Can You Do Today? 146
For Further Reading 147
Part IV: Managing Technical Debt Tactically and Strategically 149
Chapter 10: What Causes Technical Debt? 151
The Perplexing Art of Identifying What Causes Debt 151
The Roots of Technical Debt 153
What Causes Technical Debt? 154
Causes Rooted in the Business 155
Causes Arising from Change in Context 157
Causes Associated with the Development Process 159
Causes Arising from People and Team 162
To Conclude 165
What Can You Do Today? 165
For Further Reading 166
Chapter 11: Technical Debt Credit Check 167
Identifying Causes: Technical Debt Credit Check 167
Four Focus Areas for Understanding the State of a Project 170
Diagnosing the Causes of Technical Debt in Phoebe 172
Diagnosing the Causes of Technical Debt in Tethys 174
What Can You Do Today? 177
For Further Reading 178
Chapter 12: Avoiding Unintentional Debt 179
Software Engineering in a Nutshell 179
Code Quality and Unintentional Technical Debt 180
Architecture, Production, and Unintentional Technical Debt 185
What Can You Do Today? 193
For Further Reading 193
Chapter 13: Living with Your Technical Debt 195
Your Technical Debt Toolbox 195
On the Three Moons of Saturn… 201
Technical Debt and Software Development 204
Finale 205
Glossary 207
References 209
Index 217