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Lean Enterprise Architecture

LEA

Romano Roth and Dietmar Wettach

Lean Enterprise Architecture (LEA) redefines EA as a lean, value-driven discipline that bridges strategy, business, and technology. Instead of static blueprints, this book shows you how to build adaptive architectures, enable transformation, and create measurable impact with practical methods, tools, and case studies. Whether you are an enterprise architect, IT strategist, or business leader, LEA equips you to lead with clarity, agility, and influence.

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About

About

About the Book

Lean Enterprise Architecture (LEA) is a modern, practice-oriented guide to mastering Enterprise Architecture in a fast-moving, digital world.

Enterprise Architecture (EA) is no longer a static blueprint exercise. Today, it is a dynamic leadership discipline—one that connects strategy with execution, business with IT, and innovation with governance. This book equips you with the skills, tools, and mindsets needed to practice EA as an enabler of value creation, transformation, and sustainable impact.

Built on the curriculum of the CAS Enterprise Architecture program at HSLU, LEA offers a structured learning journey that blends theory, frameworks, and hands-on methods. Each chapter is mapped to real-world competencies and supported by case studies, exercises, and reflective practices—designed to make EA relevant, actionable, and human-centered.

You will learn how to:

  • Frame EA strategically as a steering instrument for the enterprise.
  • Design Business Architectures that align capabilities, value streams, and customer focus.
  • Drive IT-Transformation and organizational design with proven frameworks and patterns.
  • Apply modeling, visualization, and decision techniques to communicate with clarity.
  • Explore technology and system architecture trends—from cloud to AI, DevOps, and platforms.
  • Act as a change agent: leading stakeholders, telling compelling EA stories, and building trust.
  • Leverage EA tools, governance, and operating models for measurable impact.

Who is this book for?

This book is written for enterprise architects, business architects, IT strategists, digital leaders, and transformation professionals who want to sharpen their EA practice. It is equally relevant for business-oriented and IT-oriented readers who seek to bridge strategy, architecture, and execution in a lean and pragmatic way.

Why this book?

Because the world of EA is evolving. Organizations need more than frameworks—they need adaptive architects who combine strategic insight with practical skills, and who can lead with influence rather than documents. LEA provides exactly that: a competence-based, interactive, and reflective approach to Enterprise Architecture for the 21st century.

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DevOpsCloud ComputingSoftware ArchitectureBusiness ArchitectureDigital TransformationLeadershipAgile EnterpriseEnterprise Architecture

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About the Authors

Romano Roth

I believe the next competitive edge isn’t AI itself, it’s the organisation around it. Feedback loops, governance, and continuous adaptation across people, process, and technology.

With over two decades in the technology sector, I focus on AI-augmented delivery, platform engineering, and enterprise evolution. As Group Chief AI Officer (CAIO) at Zühlke, I shape the global strategy and service portfolio for AI-Augmented Delivery & Platform, AI integration, platform engineering, and cloud solutions. My work redefines how organizations innovate, adapt, and scale in industries such as finance, insurance, cybersecurity, energy, healthcare, and aerospace.

In a world reshaped by Artificial Intelligence (AI), I believe the key to resilience and competitiveness lies in becoming AI-augmented, AI-enabled, and ultimately AI-native: a new operating model driven by feedback loops, intelligent workflows, and self-learning systems that place customer success at the center. I empower companies to continuously create value by harmonizing people, processes, technology, and AI.

I began my journey at Zühlke more than two decades ago, evolving from software engineer and architect to trusted consultant, and now to my leadership role as Chief AI Officer. My passion for value creation through automation and quality led me from engineering into the DevOps movement and further into the forefront of enterprise transformation.

I organize the monthly DevOps Meetup in Zürich and serve as president of DevOpsDays Zürich, an annual conference within the global DevOps movement. I share my insights via my YouTube channel, with over 500 videos, and through well over 30 blog articles focused on DevOps, architecture, leadership, and transformation.

My commitment to thought leadership and education extends to my role as a lecturer in DevOps leadership, agile methodologies, digital transformation, and enterprise architecture at the Lucerne University of Applied Sciences and Arts. I champion a culture of innovation and agility, helping enterprises evolve into adaptive systems capable of thriving in complex, fast-changing environments.

My work has been recognized through several awards and honors, reflecting my contributions to technology leadership and digital transformation.

Leanpub Podcast

Episode 321

An Interview with Romano Roth

Dietmar Wettach

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