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Tables of Contents for Evaluating Software Architectures
Chapter/Section Title
Page #
Page Count
List of Figures
xiii
List of Tables
xv
Preface
xvii
Acknowledgments
xxi
Reader's Guide
xxiii
What Is Software Architecture?
1
18
Architecture as a Vehicle for Communication among Stakeholders
3
8
Architecture and Its Effects on Stakeholders
3
1
Architectural Views
4
6
Architecture Description Languages
10
1
Architecture as the Manifestation of the Earliest Design Decisions
11
2
Architectural Styles
12
1
Architecture as a Reusable, Transferable Abstraction of a System
13
1
Summary
14
1
For Further Reading
15
1
Discussion Questions
16
3
Evaluating a Software Architecture
19
24
Why Evaluate an Architecture?
23
1
When Can an Architecture Be Evaluated?
24
2
Who's Involved?
26
1
What Result Does an Architecture Evaluation Produce?
27
3
For What Qualities Can We Evaluate an Architecture?
30
2
Why Are Qualities Attributes Too Vague for Analysis?
32
2
What Are the Outputs of an Architecture Evaluation?
34
3
Outputs from the ATAM, the SAAM, and ARID
34
1
Outputs Only from the ATAM
35
2
What Are the Benefits and Costs of Performing an Architecture Evaluation?
37
4
For Further Reading
41
1
Discussion Questions
42
1
The ATAM---A Method for Architecture Evaluation
43
44
Summary of the ATAM Steps
44
1
Detailed Description of the ATAM Steps
45
25
Present the ATAM
45
1
Present the Business Drivers
46
1
Present the Architecture
47
1
Identify the Architectural Approaches
47
3
Generate the Quality Attribute Utility Tree
50
6
Analyze the Architectural Approaches
56
3
Brainstorm and Prioritize Scenarios
59
9
Analyze the Architectural Approaches
68
1
Present the Results
68
2
The Phases of the ATAM
70
14
Phase 0 Activities
71
5
Phase 1 Activities
76
1
Phase 2 Activities
77
1
Phase 3 Activities
78
6
For Further Reading
84
1
Discussion Questions
84
3
The Battlefield Control System---The First Case Study in Applying the ATAM
87
22
Preparation
88
1
Phase 1
89
11
Present the ATAM
89
1
Present the Business Drivers
89
1
Present the Architecture
89
1
Identify the Architectural Approaches
90
2
Generate the Quality Attribute Utility Tree
92
1
Analyze the Architectural Approaches
92
8
Phase 2
100
3
Brainstorm and Prioritize Scenarios
100
2
Analyze the Architectural Approaches
102
1
Present the Results
102
1
Result of the BCS Evaluation
103
4
Documentation
103
2
Requirements
105
1
Sensitivities and Tradeoffs
106
1
Architectural Risks
106
1
Summary
107
1
Discussion Questions
107
2
Understanding Quality Attributes
109
18
Quality Attribute Characterizations
110
11
Performance
111
4
Availability
115
3
Modifiability
118
2
Characterizations Inspire Questions
120
1
Using Quality Attribute Characterizations in the ATAM
121
3
Attribute-Based Architectural Styles
124
1
Summary
125
1
For Further Reading
126
1
Discussion Questions
126
1
A Case Study in Applying the ATAM
127
84
Background
128
1
Phase 0: Partnership and Preparation
129
19
Phase 0, Step 1: Present the ATAM
130
2
Phase 0, Step 2: Describe Candidate System
132
2
Phase 0, Step 3: Make a Go/No-Go Decision
134
1
Phase 0, Step 4: Negotiate the Statement of Work
135
2
Phase 0, Step 5: Form the Core Evaluation Team
137
3
Phase 0, Step 6: Hold Evaluation Team Kick-off Meeting
140
2
Phase 0, Step 7: Prepare for Phase 1
142
5
Phase 0, Step 8: Review the Architecture
147
1
Phase 1: Initial Evaluation
148
35
Phase 1, Step 1: Present the ATAM
149
3
Phase 1, Step 2: Present Business Drivers
152
5
Phase 1, Step 3: Present the Architecture
157
5
Phase 1, Step 4: Identify Architectural Approaches
162
2
Phase 1, Step 5: Generate Quality Attribute Utility Tree
164
8
Phase 1, Step 6: Analyze the Architectural Approaches
172
11
Hiatus between Phase 1 and Phase 2
183
1
Phase 2: Complete Evaluation
184
18
Phase 2, Step 0: Prepare for Phase 2
184
3
Phase 2, Steps 1-6
187
1
Phase 2, Step 7: Brainstorm and Prioritize Scenarios
187
9
Phase 2, Step 8: Analyze Architectural Approaches
196
3
Phase 2, Step 9: Present Results
199
3
Phase 3: Follow-Up
202
7
Phase 3, Step 1: Produce the Final Report
203
1
Phase 3, Step 2: Hold the Postmortem Meeting
204
3
Phase 3, Step 3: Build Portfolio and Update Artifact Respositories
207
2
For Further Reading
209
1
Discussion Questions
209
2
Using the SAAM to Evaluate an Example Architecture
211
30
Overview of the SAAM
212
2
Inputs to a SAAM Evaluation
213
1
Outputs from a SAAM Evaluation
213
1
Steps of a SAAM Evaluation
214
6
Step 1: Develop Scenarios
214
2
Step 2: Describe the Architecture(s)
216
1
Step 3: Classify and Prioritize the Scenarios
217
1
Step 4: Individuality Evaluate Indirect Scenarios
218
1
Step 5: Assess Scenario Interactions
218
1
Step 6: Create the Overall Evaluation
219
1
A Sample SAAM Agenda
220
2
A SAAM Case Study
222
16
ATAT System Overview
222
1
Step 1: Develop Scenarios, First Iteration
223
1
Step 2: Describe the Architecture(s), First Iteration
224
1
Step 1: Develop Scenarios, Second Iteration
225
2
Step 2: Describe the Architecture(s), Second Iteration
227
1
Step 3: Classify and Prioritize the Scenarios
228
3
Step 4: Individuality Evaluate Indirect Scenarios
231
4
Step 5: Assess Scenario Interactions
235
1
Step 6: Create the Overall Evaluation--Results and Recommendations
236
2
Summary
238
1
For Further Reading
239
1
Discussion Questions
239
2
ARID--An Evaluation Method for Partial Architectures
241
14
Active Design Reviews
242
3
ARID: An ADR/ATAM Hybrid
245
1
The Steps of ARID
245
3
Phase 1: Rehearsal
246
1
Phase 2: Review
246
2
A Case Study in Applying ARID
248
4
Carrying Out the Steps
249
2
Results of the Exercise
251
1
Summary
252
1
For Further Reading
252
1
Discussion Questions
253
2
Comparing Software Architecture Evaluation Methods
255
20
Questioning Techniques
257
6
Questionnaires and Checklists
257
4
Scenarios and Scenario-Based Methods
261
2
Measuring Techniques
263
4
Metrics
264
1
Simulations, Prototypes, and Experiments
265
1
Rate-Monotonic Analysis
265
1
Automated Tools and Architecture Description Languages
266
1
Hybrid Techniques
267
4
Software Performance Engineering
267
1
The ATAM
268
3
Summary
271
2
For Further Reading
273
1
Discussion Questions
273
2
Growing an Architecture Evaluation Capability in Your Organization
275
12
Growing Organizational Buy-in
276
1
Growing a Pool of Evaluators
276
2
Establishing a Corporate Memory
278
7
Cost and Benefit Data
278
3
Method Guidance
281
2
Reusable Artifacts
283
2
Summary
285
1
Discussion Questions
285
2
Conclusions
287
10
You Are Now Ready!
287
1
What Methods Have You Seen?
288
1
Why Evaluate Architectures?
288
2
Why Does the ATAM Work?
290
6
A Parting Message
296
1
Appendix A An Example Attribute-Based Architectural Style
297
6
Problem Description
297
1
Stimulus/Response
298
1
Architectural Style
298
1
Analysis
299
3
Reasoning
299
1
Priority Assignment
300
1
Priority Inversion
301
1
Blocking Time
301
1
For Further Reading
302
1
References
303
4
Index
307