Contents at a Glance. 1 Introduction Business Requirements for Global Systems Overview of Architectures 79

Transcription

1 Contents at a Glance 1 Introduction 13 2 Business Requirements for Global Systems 37 3 Overview of Architectures 79 4 Factors Influencing System Architectures IT Implementation of Architectures Customer Scenarios and Decision-Making Processes System Topology Summary for the Global Solution A Glossary 297 B Literature 305 C Authors 309 Bibliografische Informationen digitalisiert durch

2 Contents Preface The Role of IT in Globalization The Importance of an Appropriate Enterprise Model Six Steps to Your Enterprise Model From Mainframes to Distributed Systems Summary 35 - ^^.Öfiu»lniS^^ßeciä if«ä'lft^^^tin»i?feioöaif Sir^einHfi^^^^^^^^^^^i7 2.1 Covering Regional and Global Requirements Legal Regulations and Regional Business Practices Requirements of IT Users Languages, Time Zones, and Data Transfer Language-Dependent Customizing Supplementing Customizing (Transaction SMLT) Special Tools Manual Translation of Customizing Texts Address Versions Time Zone Requirements for International Businesses Data Transfer Within an Enterprise and with External Systems Summary 78 3fÄ?ö^ewföw*Ö^ÄrchItectoresÄ^^&^SSi^^^teSÄ^^^S^^^^J79' 3.1 From Past to Future Overview of Global (Central) or Distributed (Decentralized) Architectures Prerequisites and Definitions Decentralized Architectures 95

3 Contents Structure Local and Completely Distributed Decentralized Architecture Regional Architecture with Shared Services Concept Advantages and Disadvantages Centralized Decentralized Architecture Concept Advantages and Disadvantages Central Architecture Concept Single-Instance System: Central Single-Client System Central Multiclient System Advantages and Disadvantages Variants and Combined (Hybrid) Architectures Overview Variants ofthe Basic Architectures Combination of Several Architectures in One System Landscape Integration of Several SAP Business Suite Components with Different Architectures Summary 141 s'fäctö'rs*lnfluehcm^ 4.1 General Considerations Three-Dimensional Globalization Model First Dimension: Product Second Dimension: Organizations Third Dimension: Processes Business Processes Business Process Management Tools for Business Process Management Organizations Corporate Governance Global Corporate Culture Requirements ofthe Support Organization Data Center Requirements 168

4 Content Service Level Agreements ITIL Standard Product Technical Language Support and Language Combinations TimeZones SAP Release Strategy Industry Solutions SAP ERP Country Versions Country Versions in Industry Solutions and Other SAP Business Suite Components Expansion into New Countries and the Effects on the Architecture Summary General Requirements for a Data Center Hardware Consolidation and Adaptive Computing Planning Appropriate Platforms IT Infrastructure for a Global Solution Central Architecture Planning for a Global, Single-Instance Architecture Server Sizing Network Sizing and Infrastructure Workstation Infrastructure Printer Infrastructure Operating an SAP Single-Instance System Downtimes and Availability Specific Recommendations for Reducing Planned Downtimes Utilization and Job Processing SAP Solution Manager Implementing Global SAP Projects in the Selected Architecture Global System Development and Configuration

5 5.4.2 Development and Configuration in Different Architectures Release Management of Global IT Solutions Corporate Rollout that Includes a Global Template Approach Implementation of New Countries in a Central System Tools for Changing Existing Architectures System Landscape Optimization Special Technologies: Migration and Conversion Workbench Summary Experiences of SAP Customers with Different System Topologies Central System Decentralized Approach with Individual Systems Distributed Systems with Integrated and Consolidated Business Processes Decentralized Approach with Shared Services Sample Project: From Distributed Systems to Single Box Guideline for Decision-Making Processes Summary 293 A Glossary 297 B Literature 305 B.1 Books and Articles 305 B.2 Links 307 B.2.1 General Links 307 B.2.2 SAP Links 307 C Authors 309 Index