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Global SAP Systems - Design and Architecture
When designing your global SAP systems, you must consider the key question of whether you should implement one global system or several distributed local systems. This book helps you to make a sound decision and successfully implement the most appropriate system architecture.
In this book, you'll learn about the business process challenges
faced by a global enterprise, and you'll explore the technical requirements for carrying out global implementation projects. All relevant subject areas are covered, including the many different requirements global systems must meet, factors influencing the architecture, and available architecture options. In addition, you'll find valuable information and best practices on how to optimally map system topologies through IT. Extensive customer examples and an invaluable decision matrix serve to round off this comprehensive guide.
CONTENTS:
1 ... Introduction ... 13
... 1.1 ... The Role of IT in Globalization ... 13
... 1.2 ... The Importance of an Appropriate Enterprise Model ..... 19
... 1.3 ... Six Steps to Your Enterprise Model ... 23
... 1.4 ... From Mainframes to Distributed Systems ... 26
... 1.5 ... Summary ... 35
2 ... Business Requirements for Global Systems ... 37
... 2.1 ... Covering Regional and Global Requirements ... 37
... 2.2 ... Languages, Time Zones, and Data Transfer ... 62
... 2.3 ... Summary ... 78
3 ... Overview of Architectures ... 79
... 3.1 ... From Past to Future ... 79
... 3.2 ... Overview of Global (Central) or Distributed (Decentralized) Architectures ... 86
... 3.3 ... Prerequisites and Definitions ... 89
... 3.4 ... Decentralized Architectures ... 95
... 3.5 ... Regional Architecture with Shared Services ... 107
... 3.6 ... Centralized Decentralized Architecture ... 115
... 3.7 ... Central Architecture ... 120
... 3.8 ... Variants and Combined (Hybrid) Architectures ... 134
... 3.9 ... Summary ... 141
4 ... Factors Influencing System Architectures ... 143
... 4.1 ... General Considerations ... 143
... 4.2 ... Three-Dimensional Globalization Model ... 147
... 4.3 ... Business Processes ... 150
... 4.4 ... Business Process Management ... 154
... 4.5 ... Organizations ... 161
... 4.6 ... Product ... 174
... 4.7 ... Summary ... 193
5 ... IT Implementation of Architectures ... 197
... 5.1 ... General Requirements for a Data Center ... 198
... 5.2 ... IT Infrastructure for a Global Solution Central ?Architecture ... 202
... 5.3 ... Operating an SAP Single-Instance System ... 213
... 5.4 ... Implementing Global SAP Projects in the Selected Architecture ... 223
... 5.5 ... Tools for Changing Existing Architectures ... 247
... 5.6 ... Summary ... 256
6 ... Customer Scenarios and Decision-Making Processes ... 259
... 6.1 ... Experiences of SAP Customers with Different System Topologies ... 259
... 6.2 ... Guideline for Decision-Making Processes ... 278
... 6.3 ... Summary ... 293
7 ... System Topology Summary for the Global Solution ... 295
A ... Glossary ... 297
B ... Literature ... 305
... B.1 ... Books and Articles ... 305
... B.2 ... Links ... 307
C ... Authors ... 311
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