Spring Break!

Last week the Citerus team spent a few fantastic days in Morocco. We try to take these trips somewhat regularly and over the years we have been to Italy, Czech Republic, and France among other places, but this trip was the first time we left Europe.

Citerus has been bringing quite a few new people on board over the last months, so this was a great opportunity to hang out with all our people for an extended time. Some for the first time as members of the Citerus team.

I must say I am amazed with the talents that have joined us for quite some time now. In fact, it blows me away. Spending time with my colleagues makes me feel old, slow and a bit stupid, and when building a great business, this is not a bad thing. I am very proud of being a part of this awesome group of people, you constantly learn new things, you are constantly challenged, and you always have fun.

Even though we bring our entire team together one day per month to share ideas and spend time together, doing this in new environments for an extended period really opens up a lot of great opportunities. The amazing views of the Atlas mountains as well as pool side work in Marrakech turned out to be perfect for creativity and focus. Look out for the new products we will be launching and exciting articles we will be publishing during the spring as a direct result of these last few days.

Feel like joining us? We’re hiring!

Jfokus 2011

Jfokus 2011 is getting closer and this year looks fantastic! New venue, an additional day, and, as always, many interesting speakers. Tuesday February 15 has a DDD track with lots of great speakers, including Eric Evans.

Citerus is of course represented as a Jfokus partner also this year. We will be in the exhibition both conference days, come and see us!

Meltingspot

Meltingspot is a side project I run together with Tobias Hill. We're both big music lovers and we thought it could be an interesting idea to share some of our current listening with other people. With the advent of Spotify these kind of collaborations has now become quite a lot easier.

We will try to publish a new playlist regularly, perhaps once per month or so. Hopefully you will find something you like and we will get some great new listening tips in return.

The playlists are published at http://www.meltingspot.se, you can also follow us on Twitter @meltingspot.

Meltingspot #2 - Box in shape of things to come, is now live. Enjoy!

DDD classes winter/spring 2010

These are the winter and spring dates for our Domain-Driven Design classes, offered in partnership with Domain Language, Inc.

• Februrary 18, One-day DDD overview.
  
• March 9, Four-day Hands-on Immersion.
  

The introduction class is a great way to get a good overview of Domain-Driven Design. Morning is spent on tactical design and how to interact with Domain Experts, and the afternoon is all about strategic design, context mapping and distillation.

In the four-day immersion class we really learn how to put the domain model to work. It is highly interactive with programming labs, design discussions, modelling sessions, and much more!

All classes are offered in Swedish in Stockholm. The classes are official DDD classes designed by Eric Evans, Domain Language Inc.

DDDSample Presentation (free event)

On Thursday evening, October 22, Sweden Spring User Group is hosting an even in Stockholm where Peter Backlund (mostly) and I (less) will present the current state of the DDDSample application.

Agenda

DDDSample är en Spring-applikation som utvecklats för att påvisa hur idéer och koncept från Domain-Driven Design kan implementeras i en modern utvecklingsstack. Applikationen utvecklas i samarbete med Eric Evans, författare till boken Domain-Driven Design, och syftar till att visa hur mönster från DDD konkret kan användas för att skapa en systemarkitektur för att lösa problem i en komplex domän, utan att skapa onödig teknisk komplexitet.

Sedan applikationen först introducerades för drygt ett år sedan har den kontinuerligt utvecklats, mycket tack vara den feedback som kommit från olika communities. Det är snart dags för en ny release och under denna träff kommer vi kika närmare på applikationens olika delar och se hur dessa mappar mot koncept inom Domain-Driven Design.

Vi kommer att visa hur Spring (och i viss mån andra ramverk) hjälper oss att programmera domändrivet genom att dels låta oss bygga en ren och rik modell i Java, och dels genom att ta hand om infrastrukturell kod och låta oss fokusera på affärsnytta (focus on the core domain).

The presentation will be in Swedish and the event is free to attend.

Sign up at http://www.eventbrite.com/event/445416252

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DDD classes fall 2009

I am very happy to announce this fall's dates for our Domain-Driven Design classes, offered in partnership with Domain Language, Inc.

• September 23, One-day DDD overview.
  
• November 11, One-day DDD overview.
  
• December 8, Four-day Hands-on Immersion.
  

The introduction class is a great way to get a good overview of Domain-Driven Design. Morning is spent on tactical design and how to interact with Domain Experts, and the afternoon is all about strategic design, context mapping and distillation.

In the four-day immersion class we really learn how to put the domain model to work. It is highly interactive with programming labs, design discussions, modelling sessions, and much more!

All classes are offered in Swedish in Stockholm. The classes are official DDD classes designed by Eric Evans, Domain Language Inc.

One-day DDD Seminar With Eric Evans

Eric Evans returns to Sweden and Citerus to give a one-day seminar on Domain-Driven Design together with myself. It’ll be a day packed with great DDD content, don’t miss it!

One-day DDD Seminar with Eric Evans, November 4 2008, SAS Royal Viking in central Stockholm.

Register now!

Domain-Driven Design - nu på svenska!

In the beginning of June I will give Eric Evans' and Domain Language's DDD class Putting the Domain Model to Work in Swedish for the first time.

The class will be given in Stockholm.

Read more and register!

Jfokus presentations now online

Presentations from Jfokus 2008 are now available. You'll find my presentation on the Specification Pattern as well as my collegue Peter Backlund's Grails presentation here. (in Swedish)

Windows + IE for success...

Citerus Live!

This spring there will be plenty of opportunity to meet and interact with Citerus' consultants!

We will be at Jfokus 2008 in Kista, Stockholm, January 30. Peter Backlund will talk about the Grails framework and I will give a brief talk about the Specification pattern. Citerus is also sponsoring Jfokus and you can meet us at our booth in the exhibition area.

Lena Norman and Mikael Lundgren will be presenting at the Lean & Agile Software Development conference in Stockholm Februrary 5-6.

We are currently discussing further speaking engagement for later this spring and early summer. Watch this space for more info.

Hope to see you there!

Specification Pattern as a Refactoring Tool

There was a time when this blog was about software development. Nowadays it just seems to be a lot of whining. So it is time to change that. I actually did write a post about the Specification pattern detailed in Eric Evan's book Domain-Driven Design. But formatting the code examples for this blog turned out to be more of a hassle than I could deal with; so instead you'll find it in the latest issue of PNEHM!, Citerus' newsletter on software development: Specification Pattern as a Refactoring Tool.

The Specification pattern is nothing revolutionary, but it offers a nice way of encapsulating business rule logic that tend to be sprinkled all over your average business application. It is useful as a modeling and implementation concept when building systems from scratch, but can also be a powerful refactoring tool. The article will show you how.

And while you're at it, make sure to read the other articles in this issue of PNEHM!. You'll find interviews with both Ken Schwaber and Jerry Weinberg as well as a piece on Grails (in Swedish). Some people say it's our best issue ever.

P.S. Don't miss our classes on Domain-Driven Design and Strategic Design this spring.

Domain-Driven Design classes spring 2008

I'm very happy to let you know that Eric Evans is returning to Citerus and Uppsala this spring to host a new set of Domain-Driven Design open enrollment classes.

New for 2008 is that we have extended the immersion workshop Putting the Domain Model to Work to four packed days of presentations, discussions, modeling exercises and coding! This year I will give this class together with Eric which I'm sure will be great.

Eric will also give the two-day class on Strategic Design.

New is also the venue; we will be hosting this event at the brand new Uppsala Concert and Congress Hall which I think will be excellent.

This time around we have discounted fees for early registration, so head over to Citerus now to sign up:

• Putting the Domain Model to Work, 4-Day Immersion Workshop, March 11-14, 2008.


• Strategic Design, Two-Day Workshop, March 17-18, 2008

sventon 1.3 now available for download

Release 1.3 of your favourite Subversion web client is now available for download!

Read more and download at http://www.sventon.org/!

More Domain-Driven Design

Eric Evans returns to Citerus spring 2007 for more open enrollment classes in Domain-Driven Design.

Last time Eric was here in the fall he gave the class "Putting the Domain Model to Work, 3-Day Immersion Workshop". The workshop was very well received by the participants and sold out weeks in advance. I got many questions on whether we would run the class again, and I am now happy to announce that Eric will come back to Citerus in March. Eric and I will host not only the workshop we did last time but also a new two-day workshop on "Strategic Design" targeted at architects and development managers.

Seats are limited, reserve yours by registering today!

• Putting the Domain Model to Work, 3-Day Immersion Workshop, March 14-16
  
• Strategic Design, Two-Day Workshop, March 19-20