Gridshore » Architecture

CQRS – Designing domain events

Allard — Wed, 27 Jan 2010 11:33:31 +0000

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Command-Query Responsibility Segregation (CQRS) is slowly but steadily gaining ground as an architecture that helps developers to develop scalable, extensible and maintainable applications. Events play a major role in this architecture, and the way you design these events greatly influence the extensibility of [...]

CQRS made easy with cqrs4j

Allard — Mon, 21 Dec 2009 08:37:00 +0000

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Command Query Responsibility Segregation (CQRS) is an architectural style that makes a clear distinction between commands, which tell an application to do something, and queries, which are requests for information from an application. This distinction comes from the fact that the requirements (and [...]

Bring some stability to your architecture

Allard — Thu, 30 Oct 2008 20:44:56 +0000

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Applications have to run in high-consequence environments. They have to serve hundreds of thousands of users 24 / 7. Our clients spend millions in hard- and software and highly depend on the revenue generated by these applications. Unnecessary outage of these application is fatal.

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Why are web services so different from an HTML user interface?

Allard — Wed, 13 Feb 2008 18:41:35 +0000

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We all know how a typical web application is usually built up. The image at the side rougly displays the different layers that are to be found in an application. Typically, the user interface layer receives HTTP requests, calls one or more methods in [...]