2.4.1 Deriving ITGoals . . . . . . . . . . . . . . . . . . . . . . 23
2.4.2 Principles for Strategic Guidance . . . . . . . . . . . . . . 26
2.4.3 Strategies to Underpin Goal Achievement . . . . . . . . . 31
2.5.1 Content of anITStrategy . . . . . . . . . . . . . . . . . . 43
2.5.2 IT Strategy Document . . . . . . . . . . . . . . . . . . . . 45
2.5.3 Guidelines for ITStrategy inPractice . . . . . . . . . . . 47
3.3.1 Information Timeliness and Granularity . . . . . . . . . . 67
3.3.2 Constituents of Best-Practice Enterprise Architecture . . . 70
3.3.3 Landscape Planning Status . . . . . . . . . . . . . . . . . 87
4.3.1 Elements of Application Landscapes . . . . . . . . . . . . 115
4.3.2 Relationships in Application Landscapes . . . . . . . . . . 125
4.4 IT Landscape Management Processes . . . . . . . . . . . . . . . 130
4.4.1 Documenting the IT Landscape . . . . . . . . . . . . . . . 130
4.4.2 Analysing the IT Landscape . . . . . . . . . . . . . . . . 140
4.4.3 IT Landscape Planning . . . . . . . . . . . . . . . . . . . 157
4.4.4 Governing the Further Development of the IT Landscape . 185
4.5.1 Roles and Responsibilities . . . . . . . . . . . . . . . . . 187
4.5.2 Integration into Processes of IT and Decision Making . . . 190
4.5.3 Maturity Level of IT Landscape Management . . . . . . . 194
4.6.1 Conception of IT Landscape Management . . . . . . . . . 208
4.6.2 Sampling andOptimising . . . . . . . . . . . . . . . . . . 215
4.6.3 Anchoring IT Landscape Management in the Organisation 215
5.3.1 ArchitecturalDomains . . . . . . . . . . . . . . . . . . . 225
5.3.2 Technical Components . . . . . . . . . . . . . . . . . . . 228
5.4.1 Maintaining, Providing and Communicating the Blueprint . 234
5.4.2 IT Innovation Management . . . . . . . . . . . . . . . . . 235
5.4.3 Strategic Evolution of Technical Standards . . . . . . . . . 238
5.4.4 Enacting Standardisation . . . . . . . . . . . . . . . . . . 241
5.4.5 Directing Compliance with Technical Standards . . . . . . 242
5.5.1 Roles and Responsibilities . . . . . . . . . . . . . . . . . 243
5.5.2 Entities, Boards and Integration into Processes in IT andDecision-Making . . . . . . . . . . . . . . . . . . . . 244
5.5.3 Maturity of IT in Terms of Technical Standardisation . . . 246
5.6 Guidelines for Technical Standardisation in Practice . . . . . . . . 252
6.2.1 Collaboration Model Between Business and IT . . . . . . 264
6.2.2 FormofOrganisation . . . . . . . . . . . . . . . . . . . . 266
6.2.3 DecisionBoards . . . . . . . . . . . . . . . . . . . . . . . 276
6.2.4 Changing the IT Organisation . . . . . . . . . . . . . . . . 283
6.3.1 Control Indicators . . . . . . . . . . . . . . . . . . . . . . 292
6.3.2 Decision-Making Groups and Their Information Needs . . 303
Literature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 313
Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 319
Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 335
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 337