Businesses inevitably face a critical choice in the design and maintenance of their software systems: Dismantle older systems and completely replace them, or incrementally incorporate new technologies into existing systems. Many businesses choose the latter course, seeking to maximize their existing investment while adapting to rapidly evolving technology. This book is a much-needed guide, showing how to implement a successful modernization strategy and describing specifically a risk-managed, incremental approach—one that encompasses changes in software technologies, engineering processes, and business practices.

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