Vaughn Vernon

Vaughn Vernon is a Software Ecologist, Architect, Modeler. Vaughn is a leading expert in Domain-Driven Design, and a champion of simplicity and reactive systems. He consults and teaches around Domain-Driven Design and reactive software development, helping teams and organizations realize the potential of business-driven and reactive systems as they transition from technology-driven legacy web implementation approaches. As he does so, he puts strong emphasis on embracing simplicity whenever possible. Vaughn is the author of four books: Implementing Domain-Driven Design, Domain-Driven Design Distilled, Strategic Monoliths and Microservices, and Reactive Messaging Patterns with the Actor Model, all published by Addison-Wesley.

Your Brain on Inversion of Control and Dependency Injection

A few days before writing this post, I shared my thoughts about this topic on X/Twitter, LinkedIn, and Mastodon. The top engagement was on X/Twitter, with LinkedIn second, and Mastodon being minimal (as usual). There was a lot of positive reaction—nearly 900 likes to date—including those expressing their support for my thoughts. Several shared their […]

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Domain Model Discover Learning Diagram

Architecture vs Model

One of the biggest problems with business software is that architecture gets promoted more than the domain model. Further, most domain models are ordinary, and could be implemented by school students for a lot less cost than the 7-9 figures often spent. Yet, often the software architecture supporting a model—almost certainly anemic—is generally over engineered.

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Business communication rich structure

Business Communication

The influence of business communication structures on software. It is rare to see business and technology align to reach a fullness of competitive advantage. If you look carefully at the most successful companies, they are such because of the ability of major stakeholders to communicate laterally, and as a result, the strong human and team

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Domain Object Types Stores

XOOM Ecosystem

We have invested heavily in the creation of a software ecosystem that accelerates the development and delivery of solutions to complex business systems that use leading-edge architectures. The ecosystem described here is the open source XOOM platform SDK. There are a number of open source components available with the platform, but these are most easily

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Green Abstract image

No Comparison

Our first principles highlight our unique motivations and goals. Some have asked us to compare the VLINGO XOOM platform and specific components, such as XOOM Actors, with frameworks and toolkits offered by various vendors. This is the wrong question because it assumes that our platform is founded on the same philosophies and motivations as those

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Dot com bubble burst

Speed Matters

More than 20 years ago my team and I were working with my client on a web application. It was still 1999, so the dot-com bubble had not yet burst, but it would begin to weaken only five months or so into Y2K. And to think that everyone was concerned about worldwide computer failures at

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Ball legacy systems

Problems and Solutions

We are solving a set of big problems in the software industry. Obsolete and brittle architecture, and deficient software design, have resulted in the competitive paralysis of the software industry. It is quite common for large enterprises, that once enjoyed competitive distinction, to be hamstrung by Big Ball of Mud systems that prevent more than

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