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Artiklar | Artiklar om framgångsrik mjukvaruutveckling från Citerus AB
Lättrörlig kravhantering med Wiki
Idag blev jag ombedd att dela med mig av råd och erfarenheter rörande lättrörlig kravhantering i praktiken - vilka verktyg ska man använda, hur hanterar man nedbrytning, spårning mellan krav och specifikationer, osv. Frågan har kommit upp många gånger förut, och det lustiga är att den mest effektiva lösningen jag varit med och skapat var också den allra första. Läs artikeln →
Is Technical Debt still a mess?
Robert Martin just published a note on Technical Debt, and his definitions leaves me a bit confused. Uncle Bob describes Technical Debt as the result of a conscious business decision. As a simple example, your initial website design may need to be frames based because you don’t have time to build an Ajax framework. I usually use the term to describe the result of developers (more or less conscious) decisions to deliver features that are not really done. When a team is delivering features lacking automated tests, proper refactoring, documentation, or whatever is (or should be) incorporated in their Definition of Done, a debt occurs, because these features though formally delivered still require more work. Läs artikeln →
Damn you DBUnit!
I simply can't get over how powerful the Groovy XML and SQL support is, especially when you combine the two. Did you ever find yourself in the position where you wanted to convert a Hypersonic database to a DBUnit dataset? I did, and I told my co-worker, somewhat disgruntled, that "I bet this could be done with 30 lines of Groovy". Well, it could: Läs artikeln →
DSL for time and money
(Well, for time anyway) A couple of weeks ago, I did some work together with Eric Evans when he came to Uppsala to give his excellent course in domain driven design, which was co-hosted by Citerus and Patrik Fredriksson. Eric is the project leader of the Time and Money Java library, which makes working with dates, time intervals, currencies and so on a breeze. However, inspired by this article by Guillame Laforge, I wanted to see if I could create something similar by leveraging Groovy and the Time and Money library. These are a few simple examples that I came up with in an hour: Läs artikeln →
Five tips for successfully deploying Maven
Maven is one of those things that people seem to hate rather intensely, but nevertheless adoption is steadily rising in the Java community. I've worked with Maven almost daily since the 1.0 betas, and here are five things that I think could help your team working more efficiently with Maven. Use a repository manager Specify plugin versions Learn how to use the dependency plugin Use the documentation Understand the conventions Läs artikeln →
Grails Pet Store 0.2 released
I finally managed to wrap up a semi-stable milestone of Grails Pet Store, and the roadmap is now available in the form of tagged issues. Hopefully there will be a live instance available Real Soon - watch this spot for updates. Läs artikeln →
Groovy power
The concurrent API that was added to Java 5 is very powerful for sumbitting tasks to a worker thread pool, but when you combine it with the Groovy ability to implement single-method interfaces with closures you have a real winner. Läs artikeln →
On layering in DDDSample
There has been considerable interest in the DDDSample application on the Swedish DDD user group mailing list - people are scrutinizing the code, asking questions and raising concerns. This last week has been mostly about layers and packages, and I think this blog is a good forum to provide a little background and explain the rationale behind how the sample application is structured. Läs artikeln →
Running Spring on Google App Engine
In case you've been living under a rock the last couple of weeks, Google recently announced the addition of Java support to its App Engine. I have written a small sample application that leverages Spring and each of the Google infrastructure services that are exposed either as proprietary APIs or serves as backend to standard APIs. The application itself, Feeling Lucky Pictures, is very simple: you login using your Google account, and you import images from URLs into your personal gallery. You can also send an email with your pictures attatched. Läs artikeln →
How to write an automated test for code that calls System.exit()
The other day I came across some code that during certain conditions was expected to call System.exit(). Naturally I wanted test coverage for that code too, but since any test calling the method in question would terminate the entire testrun I had to find a different approach. Here is one strategy that can be used. Läs artikeln →
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Om Citerus
Citerus hjälper företag att lyckas med sin mjukvaruutveckling. Vi erbjuder metodinförande, kurser och träning samt systemutveckling och kan dessutom avlasta våra kunder genom ta oss an både delprojekt och hela projektåtaganden. Allt för att de ska kunna hålla en hög innovationstakt och skapa smarta lösningar som ökar deras konkurrenskraft. Citerus kunder har den gemensamma nämnaren att de ser mjukvaruutveckling som affärskritiskt. Läs mer →