Book
Architecture Modernization
Socio-technical alignment of software, strategy, and structure
Nick Tune, Jean-Georges Perrin
Summary
Nick Tune and Jean-Georges Perrin treat modernizing a legacy system as a socio-technical problem, so the book moves between software, strategy, and organizational structure rather than staying in any one of them. It opens on what the business is trying to achieve and how to find that out: listening and mapping tours, Wardley Mapping, a product taxonomy, and big-picture EventStorming, all before a redesign is proposed. The middle chapters identify domains and subdomains and place them in a strategic IT portfolio, then turn to structure with team topologies, loosely coupled architecture, an internal developer platform, and data mesh on the data side. A dedicated chapter covers standing up an enabling team whose job is the modernization itself, and the book closes on strategy, roadmap, and upskilling.
Target Readers
- Architects and tech leads running a legacy modernization whose hardest problems turn out to be organizational
- Engineering managers who need to change team structure and system boundaries together rather than one after the other
- Teams asked to justify a modernization in terms of business goals before the work is funded
Tags
Colophon
- Publisher
- Shoeisha
- ISBN
- 978-4-798-19407-3
- Published
- Feb 2026
- List price
- ¥4,972incl. taxMay differ from the actual selling price on Amazon
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Prerequisites
- Recommended
Domain-Driven Design: Tackling Complexity in the Heart of Software
Eric Evans
Reason: Once you have a grasp of domain models and bounded contexts, you take that thinking into the field of large-scale legacy modernization. This book ties domain decomposition to business goals and team structure, turning it into concrete steps for driving a modernization effort.
- Recommended
Team Topologies
Organizing Business and Technology Teams for Fast Flow
Matthew Skelton, Manuel Pais
Reason: After grasping team structure and Conway's Law, you apply that thinking to the concrete context of legacy modernization. This book combines team topologies with Wardley mapping and domain decomposition, laying out a path to drive modernization across technology, organization, and strategy.
- Recommended
Kill It with Fire
Manage Aging Computer Systems (and Future Proof Modern Ones)
Marianne Bellotti
Reason: Kill It with Fire concentrates on judgment: whether to modernize, where maintenance effort pays off, and how to keep an effort's momentum. Architecture Modernization treats modernization as a socio-technical problem and supplies methods for carrying it out, from finding out what the business is trying to achieve through Wardley Mapping and EventStorming to identifying domains and subdomains. The first book settles whether to do it; the second provides tools for doing it.