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Preface
6
Table of Contents
10
1 Introduction: When Things Just Work
13
1.1 Overview: The Essence in a Nutshell
14
1.2 Orientation: Notes for the Reader
23
2 Foundations: Finding the Starting Point
25
2.1 Enterprise Architecture (EA)
25
2.2 IT Architecture
33
2.3 Architecture Management
34
2.4 The IT Architect
36
2.5 Corporate Governance
38
2.6 IT Governance
39
2.7 Enterprise Architecture as a Basis for IT Governance
41
2.8 Establishing and Using Enterprise Architecture
48
2.9 Enterprise Architecture in an IT Management Framework
50
3 Goals: Doing the Right Things Right
55
3.1 The Potential Benefits of Enterprise Architecture
56
3.2 Optimizing IT Efficiency
61
3.3 Optimizing IT Effectiveness
69
3.4 Optimizing IT Security
78
3.5 The Goal: Illuminate the Dark
84
4 Documentation: Structuring Enterprise Architecture
87
4.1 Anatomy of an Enterprise Architecture Model
88
4.2 Business Architecture
98
4.3 Software Architecture
106
4.4 Systems Architecture
118
4.5 Applications Environment
127
5 Analysis: Evaluating Enterprise Architecture
135
5.1 Overview of Analysis Procedures
135
5.2 Analysis of Dependencies
141
5.3 Coverage Analysis
142
5.4 Analysis of the Interfaces
143
5.5 Analysis of Heterogeneity
145
5.6 Analysis of Complexity
150
5.7 Analysis of Conformity
151
5.8 Analysis of the Costs
154
5.9 Analysis of the Benefits
156
6 Planning: Creating Enterprise Architecture
165
6.1 IT Development Planning
165
6.2 Administering Enterprise Architecture
169
6.3 Developing Planning Scenarios
171
6.4 Evaluating Planning Scenarios
174
6.5 Planning Development Measures
178
7 Implementation: Developing Enterprise Architecture
179
7.1 Translating Strategy into Operational Reality
179
7.2 Establishing Strategic Architecture Management
182
7.3 Establishing Operational Architecture Management
184
7.4 Establishing an Organization
189
7.5 The Costs of an Enterprise Architecture
196
7.6 The Benefits of Enterprise Architecture
198
7.7 Resources: Frameworks and Tools
201
8 Safeguarding: Controlling Enterprise Architecture Development
207
8.1 Processes
209
8.2 Boards
215
8.3 Measurement Procedures
217
9 Conclusion: Finding the Right Course
223
10 References
231
11 Figures
237
12 Index
241
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