InfoQ Homepage Methodologies Content on InfoQ
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How Serverless Impacts Design: Gojko Adzic at DDD Europe
Serverless architectures are becoming mainstream and can reduce both time to market and operational costs. But to benefit from them, applications must be designed around the constraints of this architecture style. At the recent DDD Europe 2020 conference, Gojko Adzic discussed his experience using serverless and how DDD and a serverless architecture will impact the design of an application.
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Event Sourcing Done Right - Experience from the Trenches: Dennis Doomen at DDD Europe
Event sourcing is just a tool; it’s not a top level architecture style and should not be used everywhere, Dennis Doomen pointed out in his presentation on the Event Sourcing day at the DDD Europe 2020 Conference in Amsterdam where he shared some of the practices he has found useful when applying event sourcing to a problem.
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The Distributed Data Mesh as a Solution to Centralized Data Monoliths
Instead of building large, centralized data platforms, corporations and data architects should create distributed data meshes.
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Vlingo Joins the Reactive Foundation
Vlingo, creators of a platform designed to simplify building reactive systems using an actor model, has joined the Reactive Foundation. Launched in September, the Reactive Foundation was formed under the Linux Foundation to accelerate technologies for building the next generation of networked applications. Vlingo is a new charter member, joining Alibaba, Facebook, Lightbend, Netifi and Pivotal.
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When Deferring Decisions Leads to Better Codebases: Boris Litvinsky at ReactiveConf 2019
Boris Litvinsky, tech lead at Wix, recently presented in a talk at ReactiveConf 2019 in Prague why he thinks deferring decisions taken in the software development process can result in a better codebase. He also discussed some design and coding practices which support delaying or reversing decisions.
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The Swift Method: A Framework for Software Modernization Using DDD
The Swift Method is a set of techniques for analyzing complex legacy systems, and determining the work required to gradually modernize key components or the whole system.
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Sense and Nonsense in Event Thinking and Microservices
Modularity in the systems we are building is very important, but there are anti-modularity forces that we must deal with to be able to achieve this modularity. In a presentation at the recent Event-driven Microservices Conference, held by AxonIQ, Allard Buijze shared his thoughts and experience building systems based on DDD, CQRS, microservices and event sourcing.
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Design and Implementation of a DDD-Based Modular Monolith
Kamil Grzybek recently published a project where he has designed, implemented, and in detail described a monolithic application with a Domain-Driven Design (DDD) approach. His goal is to show how a monolithic application can be designed and implemented in a modular way. He also discusses some architectural considerations and design patterns he has found useful in the application.
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Eric Evans Wants to Improve the Language of DDD
Eric Evans wants architects to actively engage in improving the language used when modeling and designing complex systems. Some of the fundamental terms used in DDD, such as Bounded Contexts, are often misunderstood. Evans wants to see an active community try to address these concerns, with the goal that DDD "should be a real, living body of thought."
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Migrating a Retail Monolith to Microservices: Sebastian Gauder at MicroXchg Berlin
In his presentation at MicroXchg in Berlin, Sebastian Gauder described how he and his teams migrated an existing food retail monolith at REWE, a large German company, into several business domains with 270 microservices, while increasing the number of teams from two up to 48. He also discussed the different design goals and rules they setup to make this possible.
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Are Frameworks Good or Bad, or Both?
Preferring frameworks or libraries is somewhat controversial, Frans van Buul, Evangelist at AxonIQ, the company behind Axon Framework, writes in a recent blog post. Many argue in the favour of libraries but Van Buul thinks that a framework can be very valuable when building business applications. He believes this to be especially true for applications based on CQRS, DDD and event sourcing.
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O’Reilly Publishes “The State of Microservices Maturity” Report
Microservices are evolving from fad to trend, according to “The State of Microservices Maturity” survey, published by O’Reilly. The report showed an overall positive attitude towards microservices among practitioners surveyed. One significant finding is that DevOps and microservices feed off each other, so that the success of one contributes heavily to the success of the other.
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Readable Code - Why, How and When You Should Write It
Most people would say they want readable code, and may even prefer readability over functionality. But when it comes down to asking people to define readability, opinions will start to diverge. At Explore DDD 2018 , Laura Savino covered why we want readable code, what it really means to be readable, and when readability absolutely must take priority over other considerations.
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Basic Concepts and the Future of Axon, a CQRS and Event Sourcing Framework
At the recent Event-Driven Microservices Conference in Amsterdam, Allard Buijze described in a presentation the basic concepts, the history and future of Axon, a framework for systems based on DDD, event sourcing and CQRS. The adoption of Axon Framework is growing rapidly and recently hit one million downloads.
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Michael Feathers Wants Error Elimination to Be a Design Driver
Michael Feathers finds errors fascinating, but acknowledges that most developers don't spend a lot of time focusing on them. He also thinks most error handling is kind of giving up. Although best known for his books about working with legacy code, Feathers used his keynote presentation at Explore DDD 2018 to discuss how eliminating errors can be a design driver for software systems.