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Behaviour-Driven Development Combined with Domain-Driven Design

by Jan Stenberg on  Feb 24, 2015

Behaviour-Driven Development (BDD) is very much about conversations and examples but there is a software design part that can be used to bring BDD and Domain-Driven Design (DDD) practices together, combining the conversional bits with a domain-focused design activity, Konstantin Kudryashov explains in a presentation.

Exploring the Causes of Problems with the Analysis of Competing Hypothesis Method

by Ben Linders on  Feb 13, 2015

The analysis of competing hypotheses (ACH) method can be used to evaluate multiple competing hypotheses when investigating problems. The method mitigates cognitive biases that humans experience when exploring the causes of problems.

Aggregates, Entities and Value Objects in Domain-Driven Design

by Jan Stenberg on  Jan 31, 2015

Move as much as possible of the behaviour away from the Entities into Value Objects when working with Aggregates, As more behaviour is needed this is added as new value objects, Paul Rayner recommends in a series of blog posts covering aggregates, entities and value objects, all concepts from Domain-Driven Design (DDD).

Decentralizing Organizations to Deal with Complexity

by Ben Linders on  Dec 16, 2014 11

Niels Pflaeging, founder of the BetaCodex Network, did the opening talk organize for complexity - how to get life back into work on the second day of the Dare Festival Antwerp 2014. He explained how decentralizing organizations is paramount to increase their performance and agility.

Sharing Data Between Bounded Contexts in Domain-Driven Design

by Jan Stenberg on  Nov 25, 2014 1

When using Domain-Driven Design (DDD) separating the concerns of a large system into bounded contexts with each context using its own data store there is often a need to share some common data. One way of doing that is to let each context publish events about changes, events that others can listen to, Julie Lerman recently explained in MSDN Magazine.

Lean Thinking Applied for Organizational Change

by Ben Linders on  Nov 19, 2014

In lean, we co-design and continuously improve processes and tools to better serve individuals and interactions said Claudio Perrone. Lean views problems as a gap between the current situation and the standard and expectation. Am interview with Claudio about problem solving and learning, and on tools that can be used to apply lean thinking for change in organizations.

Exploring the Hexagonal Architecture

by Jan Stenberg on  Oct 31, 2014

Layered systems are an architectural style used essentially to avoid coupling, the biggest enemy of software maintainability, with Ports and Adapters, or a Hexagonal Architecture, an example of such an architecture, Ian Cooper explains in a presentation about architecture styles, specifically the Hexagonal Architecture.

Domain-Driven Design with Onion Architecture

by Jan Stenberg on  Oct 30, 2014

Domain-Driven Design (DDD) together with Onion Architecture is a combination that Wade Waldron believes has increased his code quality dramatically since he started using it a few years back. Using DDD was a kick-off but together with Onion architecture he found his code to be more readable and understandable, and far easier to maintain.

VersionOne and CA Technologies release a new PPM/APM integrated solution

by Katherine Kirk on  Oct 18, 2014

Last week VersionOne and CA Technologies announced that they have integrated their Project and Portfolio Management (PPM) and Agile Project Management (APM) products to provide an enterprise solution which the two organisations say gives users the ability to have a strategic view of a complete portfolio at the executive level no matter what methodology teams might use.

A Look at MongoRepository for .NET

by Jonathan Allen on  Oct 07, 2014

Most of the open source projects we share with you on InfoQ increase the capabilities of another library or technology. MongoRepository is different in that it intentionally limits the capabilities of the underlying library. We’ll let Rob Janssen why it does this in his own words.

Experiences Building a Reactive Event-Driven CQRS Application

by Jan Stenberg on  Aug 01, 2014

CQRS and Event Sourcing provide a clear and concise way to build distributed applications that adhere to the reactive manifesto, Duncan DeVore claimed in a recent presentation sharing his experiences building a distributed application using Akka and Scala.

Patterns for Building and Deploying Microservices

by Jan Stenberg on  Jul 08, 2014

Managing micro-services means looking after lots of small systems talking to each other and automated provisioning as well as infrastructure automation is crucial, James Lewis states when sharing techniques and practices that have helped him manage the increased operational complexity a microservice architecture gives.

Moving from a Monolith to Microservices at SoundCloud

by Jan Stenberg on  Jun 29, 2014

Moving SoundCloud into a microservices architecture has been essential in enabling our teams to develop production-ready features with much shorter feedback cycles, Phil Calçado writes in a three-part series sharing their experiences moving away from a monolithic system.

Building a Reactive DDD and CQRS Based Application Using Akka

by Jan Stenberg on  Jun 28, 2014

DDD and CQRS are great for building scalable software considering concepts like bounded contexts, transaction boundaries and event based communication and is together with Akka a complete platform for building enterprise applications, Pawel Kaczor starts a three-part series building an reactive application based on these concepts.

Domain Modelling Using Event Storming

by Jan Stenberg on  Jun 25, 2014

By gathering all domain experts and developers in a room, provide them with a paper roll, lots of colored post-its and a facilitator they may in hours create the best model ever, Alberto Brandolini suggested at the recent DDD Exchange conference in London.

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