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Modernizing Legacy Systems: Software Technologies, Engineering Processes, and Business Practices

ISBN: 0321118847
EAN: 2147483647

Year: 2003
Pages: 142

Authors: Robert C. Seacord, Daniel Plakosh, Grace A. Lewis

BUY ON AMAZON

• Main Page
• Table of content
• Copyright
• Preface
• Audience
• Organization and Content
• Acknowledgments
• Chapter 1. The Legacy Crisis
• 1.1 Modernization Challenges
• 1.2 How Did We Get Here?
• 1.3 The Legacy Crisis
• 1.4 Evolving Legacy Systems
• 1.5 Software Reengineering
• 1.6 Incremental Development and Deployment
• 1.7 Summary
• 1.8 For Further Reading
• Chapter 2. The Beast
• 2.1 The Retail Supply System
• 2.2 Recent History
• 2.3 Summary
• Chapter 3. Risk-Managed Modernization
• 3.1 Risk Management
• 3.2 Summary
• Chapter 4. Developing the Business Case
• 4.1 Where Are We?
• 4.2 Identify Stakeholders
• 4.3 Understand Requirements
• 4.4 RSS Requirements
• 4.5 Create a Business Case
• 4.6 The RSS Business Case
• 4.7 Summary
• 4.8 For Further Reading
• Chapter 5. Understanding the Legacy System
• 5.1 Where Are We?
• 5.2 The Context for Program Understanding: The Horseshoe Model
• 5.3 Reconstruction
• 5.4 Architecture Reconstruction
• 5.5 Issues
• 5.6 Summary
• 5.7 For Further Reading
• Chapter 6. Architecture Representation
• 6.1 Where Are We?
• 6.2 Purpose of Architecture Representation
• 6.3 Architecture Representation Requirements
• 6.4 Architectural Views
• 6.5 Additional Considerations
• 6.6 Summary
• 6.7 For Further Reading
• Chapter 7. Languages and Data Management
• 7.1 Where Are We?
• 7.2 COBOL
• 7.3 Java
• 7.4 Data Repositories
• 7.5 Data Representations for Information Exchange
• 7.6 Summary
• Chapter 8. Transaction Technology
• 8.1 Where Are We?
• 8.2 Distributed Communication
• 8.3 Transactions
• 8.4 Distributed Transactional Operations
• 8.5 Comparison of Transactional Models
• 8.6 Standards
• 8.7 Products
• 8.8 Summary
• Chapter 9. Software Infrfastructure
• 9.1 Where Are We?
• 9.2 Enterprise JavaBeans
• 9.3 Message-Oriented Middleware
• 9.4 Java 2 Enterprise Edition
• 9.5 XML Messaging
• 9.6 Summary
• Chapter 10. Maintaining Transactional Context
• 10.1 Where Are We?
• 10.2 Model Problem: Retail Supply System
• 10.3 Contingency Planning
• 10.4 Definition of the Model Problem
• 10.5 Solution of the Model Problem
• 10.6 Evaluation
• 10.7 Summary
• Chapter 11. Business Object Integration
• 11.1 Where Are We?
• 11.2 A Tale of Two Architectures
• 11.3 Quality Attributes
• 11.4 Summary
• Chapter 12. Target Architecture
• 12.1 Where Are We?
• 12.2 Forces Affecting the Architecture
• 12.3 Overview of the Architecture
• 12.4 Architectural Patterns
• 12.5 Summary
• Chapter 13. Architecture Transformation
• 13.1 Where Are We?
• 13.2 Data Adapters
• 13.3 Logic Adapters
• 13.4 Architecture Transformation Strategy
• 13.5 Componentization Trail Maps
• 13.6 Use of Adapters in RSS
• 13.7 Summary
• Chapter 14. System Preparation
• 14.1 Where Are We?
• 14.2 Analysis of Alternatives
• 14.3 Summary
• Chapter 15. Code and Data Migration
• 15.1 Where Are We?
• 15.2 Structural Analysis
• 15.3 Code Migration Plan
• 15.4 Data Migration Plan
• 15.5 Summary
• Chapter 16. Integrated Plan
• 16.1 Where Are We?
• 16.2 Reconciliation Objectives
• 16.3 Reconciliation Plan
• 16.4 Stakeholder Priorities
• 16.5 Stakeholder Ideal Profiles
• 16.6 Stakeholder Consensus Meetings
• 16.7 Code-Migration Prioritization Results
• 16.8 Summary
• Chapter 17. Resource Estimation
• 17.1 Where Are We?
• 17.2 Cost Estimation Overview
• 17.3 Costing an Increment
• 17.4 Estimation of Cost and Duration
• 17.5 Costing the Preparation Work
• 17.6 Costing the Final Database Migration
• 17.7 Data Collection
• 17.8 Summary
• 17.9 For Further Reading
• Chapter 18. Recommendations
• 18.1 Find a Better Way
• 18.2 Use Commercial Components
• 18.3 Manage Complexity
• 18.4 Develop and Deploy Incrementally
• 18.5 Software Engineering Skills
• 18.6 Component-Centric Approach
• 18.7 Architecture-Centric Approach
• 18.8 High Levels of Concurrent Development
• 18.9 Continuous Integration
• 18.10 Risk-Managed Development
• 18.11 Final Word
• References
• Acronyms