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Modernizing Legacy Systems: Software Technologies, Engineering Processes, and Business Practices Review by Susan Siegler
A Legacy Migration Classic
If you have ever had the task of migrating legacy code and data to a new system you know how complex that task can be. "Modernizing Legacy Systems" covers all the bases of migrating a legacy system in wonderful detail without being overly wordy or obscure. System and software engineers will recognize and appreciate the fact that this book bases its advice on real world experience - the kind you get only from working on complex projects.
A well-defined plan of migration is presented early on for a complex retail supply system migration. Each phase of the plan is presented and explained in detail - covering both management and development perspectives equally well. For those of us who spend our days in a developer's world, the additional information on managing the migration effort contributes the right mix of information for what we are tasked to accomplish. I appreciated the technical specifics that were included throughout (i.e., utilizing Enterprise Java Beans) so that I didn't need to use my imagination as to how this plan would fit into my current project. Everything you need to know about legacy migration and then some is covered in this book. I knew that when I started to agree with what I was reading (aka Been There Done That) and could relate what was in the book to my own experience that I had found a winner.
This book is a good read and a great reference guide to help you get through a large, complex legacy migration. When you finally finish the book, take another look to capture all the detail you missed on your first read-through.