Software Architecture in Practice

Autorentext

Len Bass, an award-winning author and lecturer, has more than 50 years of advanced software experience, including 25 years at Carnegie Mellon University’s (CMU) Software Engineering Institute (SEI). He now teaches DevOps as an adjunct faculty member at CMU.

Dr. Paul Clements, VP of Customer Success with BigLever Software, helps organizations gain value from Product Line Engineering (PLE). As senior member of technical staff at SEI, he led advanced projects in PLE and software architecture.

Rick Kazman is Professor, University of Hawaii, and Visiting Researcher at SEI. His interests include software architecture, visualization, design, analysis, and economics. He co-created influential architecture analysis methods and tools, including SAAM, ATAM, CBAM, Dali, and Titan.

Klappentext

The Definitive, Practical, Proven Guide to Architecting Modern Software--Fully Updated with New Content on Mobility, the Cloud, Energy Management, DevOps, Quantum Computing, and More

Updated with eleven new chapters, Software Architecture in Practice, Fourth Edition, thoroughly explains what software architecture is, why it's important, and how to design, instantiate, analyze, evolve, and manage it in disciplined and effective ways.

Three renowned software architects cover the entire lifecycle, presenting practical guidance, expert methods, and tested models for use in any project, no matter how complex. You'll learn how to use architecture to address accelerating growth in requirements, system size, and abstraction, and to manage emergent quality attributes as systems are dynamically combined in new ways.

With insights for utilizing architecture to optimize key quality attributes--including performance, modifiability, security, availability, interoperability, testability, usability, deployability, and more--this guide explains how to manage and refine existing architectures, transform them to solve new problems, and build reusable architectures that become strategic business assets.

• Discover how architecture influences (and is influenced by) technical environments, project lifecycles, business profiles, and your own practices
• Leverage proven patterns, interfaces, and practices for optimizing quality through architecture
• Architect for mobility, the cloud, machine learning, and quantum computing
• Design for increasingly crucial attributes such as energy efficiency and safety
• Scale systems by discovering architecturally significant influences, using DevOps and deployment pipelines, and managing architecture debt
• Understand architecture's role in the organization, so you can deliver more valueRegister your book for convenient access to downloads, updates, and/or corrections as they become available. See inside book for details.

Inhalt

Preface xv
Acknowledgments xvii

**Part I: Introduction 1

Chapter 1: What Is Software Architecture? 1**
1.1 What Software Architecture Is and What It Isn't 2
1.2 Architectural Structures and Views 5
1.3 What Makes a "Good" Architecture? 19
1.4 Summary 21
1.5 For Further Reading 21
1.6 Discussion Questions 22

Chapter 2: Why Is Software Architecture Important? 25
2.1 Inhibiting or Enabling a System's Quality Attributes 26
2.2 Reasoning about and Managing Change 27
2.3 Predicting System Qualities 28
2.4 Communication among Stakeholders 28
2.5 Early Design Decisions 31
2.6 Constraints on Implementation 31
2.7 Influences on Organizational Structure 32
2.8 Enabling Incremental Development 33
2.9 Cost and Schedule Estimates 33
2.10 Transferable, Reusable Model 34
2.11 Architecture Allows Incorporation of Independently Developed Elements 34
2.12 Restricting the Vocabulary of Design Alternatives 35
2.13 A Basis for Training 36
2.14 Summary 36
2.15 For Further Reading 37
2.16 Discussion Questions 37

**Part II: Quality Attributes 39

Chapter 3: Understanding Quality Attributes 39**
3.1 Functionality 40
3.2 Quality Attribute Considerations 41
3.3 Specifying Quality Attribute Requirements: Quality Attribute Scenarios 42
3.4 Achieving Quality Attributes through Architectural Patterns and Tactics 45
3.5 Designing with Tactics 46
3.6 Analyzing Quality Attribute Design Decisions: Tactics-Based Questionnaires 48
3.7 Summary 49
3.8 For Further Reading 49
3.9 Discussion Questions 50

Chapter 4: Availability 51
4.1 Availability General Scenario 53
4.2 Tactics for Availability 55
4.3 Tactics-Based Questionnaire for Availability 62
4.4 Patterns for Availability 66
4.5 For Further Reading 68
4.6 Discussion Questions 69

Chapter 5: Deployability 71
5.1 Continuous Deployment 72
5.2 Deployability 75
5.3 Deployability General Scenario 76
5.4 Tactics for Deployability 78
5.5 Tactics-Based Questionnaire for Deployability 80
5.6 Patterns for Deployability 81
5.7 For Further Reading 87
5.8 Discussion Questions 87

Chapter 6: Energy Efficiency 89
6.1 Energy Efficiency General Scenario 90
6.2 Tactics for Energy Efficiency 92
6.3 Tactics-Based Questionnaire for Energy Efficiency 95
6.4 Patterns 97
6.5 For Further Reading 98
6.6 Discussion Questions 99

Chapter 7: Integrability 101
7.1 Evaluating the Integrability of an Architecture 102
7.2 General Scenario for Integrability 104
7.3 Integrability Tactics 105
7.4 Tactics-Based Questionnaire for Integrability 110
7.5 Patterns 112
7.6 For Further Reading 114
7.7 Discussion Questions 115

Chapter 8: Modifiability 117
8.1 Modifiability General Scenario 120
8.2 Tactics for Modifiability 121
8.3 Tactics-Based Questionnaire for Modifiability 125
8.4 Patterns 126
8.5 For Further Reading 130
8.6 Discussion Questions 131

Chapter 9: Performance 133
9.1 Performance General Scenario 134
9.2 Tactics for Performance 137
9.3 Tactics-Based Questionnaire for Performance 145
9.4 Patterns for Performance 146
9.5 For Further Reading 149
9.6 Discussion Questions 150

Chapter 10: Safety 151
10.1 Safety General Scenario 154
10.2 Tactics for Safety 156
10.3 Tactics-Based Questionnaire for Safety 160
10.4 Patterns for Safety 163
10.5 For Further Reading 165
10.6 Discussion Questions 166

Chapter 11: Security 169
11.1 Security General Scenario 170
11.2 Tactics for Security 172
11.3 Tactics-Based Questionnaire for Security 176
11.4 Patterns for Security 179
11.5 For Further Reading 180
11.6 Discussion Questions 180

Chapter 12: Testability 183
12.1 Testability General Scenario 186
12.2 Tactics for Testability 187
12.3 Tactics-Based Questionnaire for Testability 192
12.4 Patterns for Testability 192
12.5 For Further Reading 194
12.6 Discussion Questions 195

Chapter 13: Usability 197
13.1 Usability General Scenario 198
13.2 Tactics for Usability 200
13.3 Tactics-Based Questionnaire for Usability 202
13.4 Patterns for Usability 203
13.5 For Further Reading 205
13.6 Discussion Questions 205

Chapter 14: Working with Other Quality Attributes 207
14.1 Other Kinds of Quality Attributes 207
14.2 Using Standard Lists of Quality Attributes--Or Not 209
14.3 Dealing with "X-Ability": Bringing a New QA into the Fold 212
14.4 For Further Reading 215
14.5 Discussion Questions 215

**Part III: Architectural Solutions 217

Chapter 15: Software Interfaces 217**
15.1 Interface Concepts 218
15.2 Designing an Interface 222
15.3 Documenting the Interface 228
15.4 Summary 230
15.5 For Further Reading 230
15.6 Discussion Questions 231

Chapter 16: Virtualization 233
16.1 Shared Resources 234
16.2 Virtual Machines 235
16.3 VM Images 238
16.4 Containers 239
16.5 Containers and VMs 241
16.6 Container Portability 242
16.7 Pods 242
16.8 Serverless Architecture 243
16.9 Summary 244
16.10 For Furthe…