Managed Evolution

A Strategy for Very Large Information Systems

By: Bruno Bonati, Stephan Murer

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Hardcover | 30 October 2010

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290 Pages

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Many organizations critically depend on very large information systems. In the authors' experience these organizations often struggle to find the right strategy to sustainably develop their systems. Based on their own experience at a major bank, over more than a decade, the authors have developed a successful strategy to deal with these challenges, including: - A thorough analysis of the challenges associated with very large information systems - An assessment of possible strategies for the development of these systems, resulting in managed evolution as the preferred strategy - Describing key system aspects for the success of managed evolution, such as architecture management, integration architecture and infrastructure - Developing the necessary organizational, cultural, governance and controlling mechanisms for successful execution

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Non-Fiction Computing & I.T.Databases Information Retrieval Business & Management Management & Management Techniques Business Mathematics & Systems Computer Networking & Communications Computer Science Business Strategy Computer Hardware Business Applications

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Published: 28th September 2014

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Structure, Properties, Challenges and Architecture of Very Large Information Systems
Very Large Information System Challenge	p. 3
Background	p. 3
Complexity of Very Large Information Systmes	p. 5
Properties of Very Large Information Systems	p. 9
Strategic Approaches for Very Large Information Systems	p. 14
Opportunistic Approach	p. 17
Replacement Approach	p. 19
Greenfield Approach	p. 22
The Core Idea of Managed Evolution	p. 23
Elements of Managed Evolution	p. 30
Where to Start with Managed Evolution	p. 32
Architecture Management	p. 35
What is IT Architecture and Why Is It Important to Managed Evolution	p. 35
Architecture Principles	p. 37
Architecture Layers and Models	p. 39
Business Architecture	p. 42
Technical Architecture	p. 45
Technical Architecture	p. 57
Vertical Architectures	p. 60
Architecture As an Activity: The Architecture Process	p. 65
Architecture Organization: Federated Architecture Process	p. 71
Integration Architecture	p. 79
Enabling Managed Evolution	p. 79
Challenges for Integration Architecture	p. 81
Composing Systems from Components	p. 83
Functional Composition	p. 84
Desktop Integration	p. 85
Process Orchestration	p. 86
Layering Components	p. 86
Choosing the Right Interfaces	p. 91
Adequate Degree of Coupling	p. 92
Adequate Integration Scope	p. 94
Avoid Redundancy	p. 95
Formal Syntax and Rich Semantics	p. 96
Adequate Granularity and Reuse	p. 99
Bridging Technical Heterogeneity and Network Distance	p. 100
Use Industry Standards Where Applicable	p. 101
Interfaces and Service Contracts	p. 102
Interfaces and Services	p. 103
Non-Functional Properties of Services	p. 106
Contracts as Active Relationships	p. 107
Service Versioning	p. 109
Service Management Process	p. 111
Service Delivery Infrastructure	p. 116
Consuming Foreign Services	p. 119
Evolutionary Decomposition of Monolithic Systems	p. 124
Infrastructure
Managed Evolution of Infrastructure	p. 129
Technology Portfolio	p. 131
Platforms	p. 138
Platform Concept	p. 138
Platforms as Infrastructure Service Providers	p. 139
Application Development Support Processes	p. 141
Platforms Operation Processes	p. 142
Platform Management Processes	p. 146
Application Platforms and Runtime Platforms	p. 148
Operations	p. 152
Operational Challenges of Managed Evolution	p. 153
Componentization for Operations	p. 153
Autonomic Computing	p. 155
Configuration Management Database	p. 158
Organization and Management Processes for Execution of Managed Evolution
Business-IT Alignment	p. 163
Managed Evolution and Business-IT Alignment	p. 163
Limitations of Hierarchical IT Governance	p. 167
Matching Roles: Balance of Power	p. 168
Governance Models for Project Portfolio Management	p. 173
Business-IT Alignment Processes	p. 178
Strategic Business-IT Alignment Process	p. 178
Project Portfolio Management Process	p. 183
Project Management Process	p. 185
People, Culture and Organization	p. 187
People and Skills	p. 187
Culture and Values	p. 192
IT Organization	p. 196
IT Organization Embedding	p. 196
Interaction of IT Functions	p. 198
Strengthening system-Wide Consistency Through Organization	p. 201
Measuring the Managed Evolution	p. 203
Introduction	p. 203
Measuring Change Drivers and Enablers	p. 205
Measuring System Properties	p. 210
Measuring Managed Evolution Strategy	p. 216
Impact Factors and Agility	p. 224
Summary, Conclusions and Outlook
Conclusions and Outlook	p. 229
Summary of Key Points	p. 229
Outlook	p. 232
References	p. 235
Glossary	p. 247
Abbreviations	p. 257
Index	p. 259
Table of Contents provided by Ingram. All Rights Reserved.

Managed Evolution

A Strategy for Very Large Information Systems

At a Glance

Hardcover

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How to return your order

Defective items

You Can Find This Book In

Other Editions and Formats

Paperback

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