Read our leading and best-selling books on advanced software design and development techniques.

Vaughn Vernon Books

Implementing Domain-Driven Design

Vaughn Vernon

Implementing Domain-Driven Design presents a top-down approach to understanding domain-driven design (DDD) in a way that fluently connects strategic patterns to fundamental tactical programming tools. Vaughn Vernon couples guided approaches to implementation with modern architectures, highlighting the importance and value of focusing on the business domain while balancing technical considerations.

Building on Eric Evans’ seminal book, Domain-Driven Design, Vaughn presents practical DDD techniques through examples from familiar domains. Each principle is backed up by realistic Java examples—all applicable to C# developers—and all content is tied together by a single case study: the delivery of a large-scale Scrum-based SaaS system for a multitenant environment.

Vaughn Vernon, the author, takes you far beyond “DDD-lite” approaches that embrace DDD solely as a technical toolset, and shows you how to fully leverage DDD’s “strategic design patterns” using Bounded Context, Context Maps, and the Ubiquitous Language. Using these techniques and examples, you can reduce time to market and improve quality, as you build software that is more flexible, more scalable, and more tightly aligned to business goals.

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Domain-Driven Design Distilled

Vaughn Vernon

Domain-Driven Design (DDD) software modeling delivers powerful results in practice, not just in theory, which is why developers worldwide are rapidly moving to adopt it. Now, for the first time, there’s an accessible guide to the basics of DDD: What it is, what problems it solves, how it works, and how to quickly gain value from it.

Concise, readable, and actionable, Domain-Driven Design Distilled  never buries you in detail–it focuses on what you need to know to get results. Vaughn Vernon, author of the best-selling Implementing Domain-Driven Design, draws on his twenty years of experience applying DDD principles to real-world situations. He is uniquely well-qualified to demystify its complexities, illuminate its subtleties, and help you solve the problems you might encounter.

Vernon guides you through each core DDD technique for building better software. You’ll learn how to segregate domain models using the powerful Bounded Contexts pattern, to develop a Ubiquitous Language within an explicitly bounded context, and to help domain experts and developers work together to create that language. Vernon shows how to use Subdomains to handle legacy systems and to integrate multiple Bounded Contexts to define both team relationships and technical mechanisms.

Domain-Driven Design Distilled  brings DDD to life. Whether you’re a developer, architect, analyst, consultant, or customer, Vernon helps you truly understand it so you can benefit from its remarkable power.

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Reactive Messaging Patterns with the Actor Model

Reactive Messaging Patterns with the Actor Model  enables enterprise developers to solve complex application and integration problems that were nearly impossible to address before. Developers can build multi-core, multi-threaded, highly-scalable, high performance, low-latency systems, and write composable software that is event-driven, scalable under load, responsive, and highly resilient. Developers are increasingly recognizing the potential of these technologies, and companies including Lightbend, VMware, and SpringSource have recently released new tools for using them. Now, there’s a start-to-finish guide to using reactive programming and the Actor model with Scala and Akka: Reactive Messaging Patterns with the Actor Model.

The book begins with a concise, usable review of programming with the Actor model and the Scala language and the Akka toolkit. Next, Vaughn presents a guide to achieving high performance using the threading model supplied with actor systems. Following this is an easy-to-adapt cookbook of solutions for message-based applications and integration. The detailed solutions address messaging systems, channels, construction, routing, transportation, endpoints, and system management. Each follows the proven format introduced by Gregor Hohpe and Bobby Woolf in their popular Enterprise Integration Patterns, while offering advanced solutions based on Scala and Akka. Using this guide’s insights and examples, you can take Scala programming to the next level, applying Scala with the Akka toolkit to achieve maximum organizational value.

The Addison-Wesley Signature Series: Vaughn Vernon

Vaughn Vernon is a champion of simplifying software architecture and development, with an emphasis on reactive methods. He has a unique ability to teach and lead with Domain-Driven Design using lightweight tools to unveil unimagined value. He helps organizations achieve competitive advantages using enduring tools such as architectures, patterns, and approaches, and through partnerships between business stakeholders and software developers.

Vaughn’s Signature Series guides readers toward advances in software development maturity and greater success with business-centric practices. The series emphasizes organic refinement with a variety of approaches—reactive, object, and functional architecture and programming; domain modeling; right sized services; patterns; and APIs—and covers best uses of the associated underlying technologies.

Strategic Monoliths and Microservices

Driving Innovation Using Purposeful Architecture

Vaughn Vernon and Tomasz Jaskula
Most recent microservices books fully buy into the hype, starting from the premise that microservices are nearly always the best approach to developing enterprise systems. But that isn’t always a safe assumption: in fact, in some cases, it can be disastrous, leading to architectures that serve nobody well. Strategic Monoliths and Microservices helps business decision-makers and technical team members collaborate to clearly understand their strategic problems, and identify their optimal architectural approaches, whether those turn out to be distributed microservices, well-modularized monoliths, or coarse-grained services partway between the two. 
Writing for executives and IT professionals alike, leading software architecture experts Vaughn Vernon and Tomasz Jaskula guide you through making balanced architecture compositional decisions based on need and purpose rather than popular opinion, so you can maximize business value and deliver systems that evolve more easily. Throughout, the authors provide realistic application examples, showing how to construct well-designed monoliths that are maintainable and extensible, and how to decompose massively tangled legacy systems into truly effective microservices.

Continuous Architecture in Practice

Software Architecture in the Age of Agility and DevOps

Murat Erder, Pierre Pureur, Eoin Woods

Authors Murat Erder, Pierre Pureur, and Eoin Woods have taken their extensive software architecture experience and applied it to the practical aspects of software architecture in real-world environments. Continuous Architecture in Practice provides hands-on advice for leveraging the continuous architecture approach in real-world environments and illuminates architectures changing role in the age of Agile, DevOps, and cloud platforms. This guide will help technologists update their architecture practice for new software challenges.

As part of the Vaughn Vernon Signature Series, this title was hand-selected for the practical, delivery-oriented knowledge that architects and software engineers can quickly apply. It includes in-depth guidance for addressing today’s key quality attributes and cross-cutting concerns such as security, performance, scalability, resilience, data, and emerging technologies. Each key technique is demonstrated through a start-to-finish case study reflecting the author’s deep experience with complex software environments. Key topics include:

  • Creating sustainable, coherent systems that meet functional requirements and the quality attributes stakeholders care about
  • Understanding team-based software architecture and architecture as a “flow of decisions”
  • Understanding crucial issues of data management, integration, and change, and the impact of varied data technologies on architecture
  • Architecting for security, including continuous threat modeling and mitigation
  • Architecting for scalability and resilience, including scaling microservices and serverless environments
  • Using architecture to improve performance in continuous delivery environments
  • Using architecture to apply emerging technologies successfully

Domain Storytelling 

A Collaborative, Visual, and Agile Way to Build Domain-Driven Software

Stefan Hofer, Henning Schwentner

Storytelling is at the heart of human communication—why not use it to overcome costly misunderstandings when designing software? By telling and visualizing stories, domain experts and team members make business processes and domain knowledge tangible. Domain Storytelling enables everyone to understand the relevant people, activities, and work items. With this guide, the method’s inventors explain how domain experts and teams can work together to capture insights with simple pictographs, show their work, solicit feedback, and get everyone on the same page.

Stefan Hofer and Henning Schwentner introduce the methods easy pictographic language, scenario-based modeling techniques, workshop format, and relationship to other modeling methods. Using step-by-step case studies, they guide you through solving many common problems:

  • Fully align all project participants and stakeholders, both technical and business-focused
  • Master a simple set of symbols and rules for modeling any process or workflow
  • Use workshop-based collaborative modeling to find better solutions faster
  • Draw clear boundaries to organize your domain, software, and teams
  • Transform domain knowledge into requirements, embedded naturally into an agile process
  • Move your models from diagrams and sticky notes to code
  • Gain better visibility into your IT landscape so you can consolidate or optimize it

This guide is for everyone who wants more effective software—from developers, architects, and team leads to the domain experts, product owners, and executives who rely on it every day.

Principles of WEB API Design

Delivering Value with APIs and Microservices

James Higginbotham

The Full-Lifecycle Guide to API Design

Principles of Web API Design brings together principles and processes to help you succeed across the entire API design lifecycle. Drawing on extensive in-the-trenches experience, leading consultant James Higginbotham helps you align every stakeholder on specific outcomes, design APIs that deliver value, and scale the design process from small teams to the entire organization.

Higginbotham helps you bring an “outside-in” perspective to API design to reflect the voices of customers and product teams, map requirements to specific and well-organized APIs, and choose the right API style for writing them. He walks through a real-world example from the ground up, offering guidance for anyone designing new APIs or extending existing APIs.

  • Deliver great APIs by getting your design processes right
  • Gain agreement on specific outcomes from design teams, customers, and other stakeholders
  • Craft job stories, conduct EventStorming, and model capabilities
  • Identify the right APIs, and organize operations into coherent API profiles
  • Choose the best styles for each project: REST, gRPC, GraphQL, or event-based async APIs
  • Refine designs based on feedback from documenters, testers, and customers
  • Decompose APIs into microservices
  • Mature your API program, implementing design and management processes that scale

This guide is invaluable for anyone involved in planning or building APIs–architects, developers, team leaders, managers in single and multi-team environments, and any technical or business professional delivering “API-as-a-product” offerings.

Patterns for API Design

Simplifying Integration with Loosely Coupled Message Exchanges

Olaf Zimmermann, Mirko Stocker, Daniel Lubke, Uwe Zdun, Cesare Pautasso

As thousands of developers focus on constructing reliable, well-performing, and secure APIs, there’s immense demand for a practical, up-to-date, technology-and-platform-independent guide to API design.  API Design Patterns fills this gap. A team of expert authors cut through the complexity of API communication and message content, presenting rich and complete design guidelines and heuristics for engineering APIs sustainably and specifying them clearly.

API Design Patterns covers the entire API lifecycle, from launching projects and establishing business goals through defining architecturally significant requirements, elaborating and implementing designs, and documentation. It illuminates patterns drawn from both public web APIs and proprietary application development and software integration projects the authors have led or participated in. You’ll find a complete library of concrete, actionable design patterns, each formatted consistently to explain context, forces, problem, solution, discussion, and known uses.

Throughout, the authors share practical insights for making better design decisions and tradeoffs, facilitating easier implementation, and structuring and designing higher-quality APIs to meet both short- and long-term needs. You’ll learn how to:

  • Facilitate better API design discussions by establishing a common vocabulary, identifying key decisions, and comparing realistic options
  • Simplify design reviews and accelerate objective comparisons
  • Plan to smoothly evolve and extend APIs without compromising backward-compatibility
  • Enhance documentation with useful design knowledge to help client developers quickly grasp API capabilities and constraints, and confidently use your APIs

Serverless as a Game Changer:
How to Get the Most Out of the Cloud

Joseph Emison

Leverage the serverless mindset to build and deploy software faster, better, and with less expense.

In this definitive guide, Joseph Emison shows how to leverage serverless for maximum customer value. He reveals why mindset is crucial to modern IT strategy and explains why and how to move toward a truly serverless mindset.

Many organizations are falling short when it comes to leveraging the cloud. Drawing on his experience as a pioneering CTO across multiple industries, Emison shows why and how you can gain immense business value from the cloud. While many serverless adopters focus on converting and building apps on serverless compute platforms like AWS Lambda, Emison offers better ways to think about your tech stack, optimize build-or-buy decisions, choose the right vendor for each commercial off-the-shelf (COTS) or open-source solution, and draw on the industry’s best managed services.

To help you develop a serverless mindset, Emison includes a case study demonstrating a real-world enterprise transition to serverless. The author also provides an exclusive directory of current managed services with focused descriptions and concise explanations of each service and its role in modern application architecture. Many of these services are unfamiliar to enterprise architects, but they are enterprise tested and can radically simplify any serverless transition.

  • Evolve your tech stack and mindset to gain the full benefits of the cloud
  • Deliver software faster, better, and at lower cost with serverless
  • Use serverless architectures and managed services to offload tasks that don’t add value
  • Follow a real-world case study taking you from where you are to where you want to be
  • Explore an exclusive managed services directory to find resources to streamline your serverless transition

Transform your mindset and organization by leveraging serverless architecture to change the game and win it.

Register your book for convenient access to downloads, updates, and/or corrections as they become available. See inside book for details.


Adaptive Systems with Domain-Driven Design, Wardley Mapping, and Team Topologies

Architecture for Flow

Susanne Kaiser

In a world of relentless change and accelerating uncertainty, organizations must continuously adapt and evolve to compete in environments they never anticipated. This requires upfront design for adaptability, and closer business alignment of software systems and team structures. To succeed, organizations must integrate advanced techniques from business strategy, software architecture, and team organization. Now, independent technology consultant Susanne Kaiser introduces a powerful unified toolset you can use to design, build, and evolve adaptive software systems and teams that are optimized for ever-faster rates of change.

Kaiser shows how to combine Wardley Maps, Domain-Driven Design (DDD), and Team Topologies to understand your problem domain more clearly, focus on your crucial core subdomain, and reflect the dynamics of your business landscape. Using these tools, you’ll learn how to design evolvable services within an adaptive system, which is in turn owned by a team organization that optimizes for fast flow.

Kaiser goes beyond Domain Driven Design’s popular patterns to reveal how DDD enables strategic design for long-term business success. Her accessible explanations and practical examples show how to combine DDD with intuitive Wardley Maps and powerful Team Topologies to improve success across the full lifecycle: strategy, design, implementation, deployment, operation, and evolution. As she demystifies and demonstrates these tools, Kaiser answers the most important questions faced by project participants–from CxOs to architects to software developers.

Balancing Coupling in Software Design 

Successful Software Architecture in General and Distributed Systems

Vlad Khononov

Microservices become immensely popular because it promised to help organizations build loosely-coupled systems that allow for fast, easy change. But microservices systems haven’t always kept that promise. This book identifies the deeper problem — how software architects and designers approach coupling – and introduces an important new approach for creating more successful designs whether you use microservices or not.

Instead of blindly avoiding coupling, leading software architecture expert Vladik (Vlad) Khononov proposes a novel method that transforms it into a powerful design tool: “balanced multi-dimensional coupling.” Khononov begins by surveying existing methods of evaluating coupling, and illuminating their strengths and limitations in the context of modern distributed systems. Next, he introduces a new multi-dimensional coupling model, and demonstrates how to harness it to build modular software.

Instead of focusing solely on a single approach, Balancing Coupling in Software Design illuminates underlying design principles that are ubiquitous in SOA, microservices, DDD, design patterns, and other paradigms, revealing how each of them can fail if thoughtful design principles for coupling are neglected — and how balanced coupling can make all of them work more effectively.

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