Category Archives: CQRS

CQRS and user experience

Posted on August 23, 2012 by Jimmy Bogard

CQRS as a concept is relatively easy to grasp, as it’s really just two objects where there was once one (plus all the stuff underneath the covers to make that happen). Where I see most teams struggle to apply these … Continue reading →

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Busting some CQRS myths

Posted on August 22, 2012 by Jimmy Bogard

CQRS, while a relatively simple concept, still brings a lot of assumptions about what CQRS is and should be. So what is CQRS? Simply put, CQRS is two objects where there was once one. We’re splitting code infrastructure down to … Continue reading →

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ADNUG Presentation July 9, 2012

Posted on July 15, 2012 by Gabriel Schenker

I want to thank all people who attended my presentation about CQRS and Event Sourcing at the ADNUG meeting on July 9, 2012. It was a great experience for me and I was pleased about the many questions you had. … Continue reading →

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Presenting at ADNUG meeting

Posted on July 6, 2012 by Gabriel Schenker

I’m pleased to be invited to speak/present at the ADNUG meeting on Monday July 9th, 2012 at 6pm. The topic of my presentation will be CQRS and Event Sourcing with a special focus on how we do it at TOPAZ … Continue reading →

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How we got rid of the database–part 6

Posted on June 30, 2012 by Gabriel Schenker

In this series of posts I discuss how we do CQRS and event sourcing. One of our main goals was to reduce the overall complexity of our solution which ultimately led us to the point where we got rid of … Continue reading →

Also posted in Event sourcing, no-database | 11 Comments

Eventual consistency, CQRS and interaction design

Posted on June 26, 2012 by Jimmy Bogard

Gabriel Schenker’s excellent series of posts on “How we got rid of the database” offers a great insight on the benefits of a CQRS/ES application. One of the problems often seen with designing user interfaces that introduce eventual consistency into … Continue reading →

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How we got rid of the database–part 5

Posted on June 24, 2012 by Gabriel Schenker

Preface In our company we were looking for a way to radically simplify the way we implement our enterprise software. We wanted to get rid of accidental complexity introduced by using complex and expensive middleware and server software like RDBMS. … Continue reading →

Also posted in Event sourcing, no-database | 14 Comments

How we got rid of the database–part 4

Posted on June 20, 2012 by Gabriel Schenker

This is the fourth episode of a series of posts about how we do CQRS and event sourcing. To my (positive) surprise the first three parts (part 1, part 2, part3) have caused quite some discussion amongst the readers. Since … Continue reading →

Also posted in Event sourcing, no-database | 4 Comments

How we got rid of the database–part 2

Posted on June 13, 2012 by Gabriel Schenker

A quick introductory sample – continued In part one of this series I started to explain what we do, when e.g. a user (in the particular case a principal investigator) wants to schedule a new task. In this case a … Continue reading →

Also posted in Event sourcing, no-database | 12 Comments

How we got rid of the database

Posted on June 12, 2012 by Gabriel Schenker

A quick introductory sample – Part 1 I want to write a series of posts which describe in detail how we do things in my company. What architecture do we use, which patterns do we follow, and more specifically, how … Continue reading →

Also posted in Event sourcing, no-database | 11 Comments