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Blog Post

Functional Validation in Scala

Validation is something everybody needs eventually when working with domain models. The Scala ecosystems offers a wide rage of tools which can be used for this purpose. This blog post introduces some of the most common approaches by applying them to a domain model.

Tobias Neef

Blog Post

Why You Should Avoid a Canonical Data Model

As an enterprise architect, you might be tempted to strive for a canonical data model for your systems’ interfaces. That’s not a good idea.

Stefan Tilkov

Blog Post

Docker images for developers

Jerry Preissler

Blog Post

Scalable Software Systems

Scalability has long been one of the hallmarks of quality IT systems. When we hear this term we usually associate it with an upward scalability of the system. Generally, it seems to be about how much more throughput and load our system can sustain through additonal RAM, CPU or extra machines. Often, however, downwards scalability is just as interesting, that is, the behaviour of the system when only very few resources are available. Such flexibility is very useful, for instance, if a complex system has to go through a variety of differently sized development, test and acceptance environments before it is provisioned in the live system.

Oliver Tigges

Blog Post

Hystrix – to make your fuse blow just in time

Circuit breakers were originally introduced to prevent the escalation of an outage. If your fuse blows occasionally, that does not have to be a bad thing - at least if it is a circuit breaker in the sense of Hystrix. In this article we will introduce you to Hystrix, a library which will help you to increase the stability of your distrubted applications and which will help to prevent cascading error scenarios.

Holger Kraus

Arne Landwehr