Monthly Archives: December 2009

Choosing a Software Quality Model

For my thesis (Software Quality) I am currently figuring out how to choose a proper Software Quality Model in order to lay down the foundation of a Software Quality Definition for the project I am working on.

For now I have choosen this approach, and I’d like to hear from others how they (would) have tackled this problem.

It is good to know that I have narrowed down what “Software Quality” is. I’ll be focussing on the product (Garvin, Gosby) quality and the targetted audience are Software Engineers.

At first I will determine what kind of product I am working on. In this case it is a website, selling things. Some characteristics come to mind, like “24/7” or “should display always the correct (price) information”.

With these characteristics, I’ll look up Software Quality Attributes that would fit in.

This gives me a table, with in the first column all the characteristics, and next to them a few Software Quality Attributes that would fall into that specific characteristic description.

Now that I have a list of Software Quality Attributes, I can look up what Quality Model has the most matching Software Quality Attributes in them as well. Models that focus on different attributes would not interest me anymore, because it would not apply to the kind of product I focus on.

I found a nice model comparison, with Software Quality Attributes, from NASA. For your convenience I show it here:

With this, it would be possible to choose a Software Quality Model and work from there.

I am half-way with this method, and so far I think this is the way to go. If you think this is a bit too easy, or I should really take other considerations. Please let me know.

Note: thanks to Wouter for his suggestion who got me into this direction.

Don’t forget your resources directory! (Maven/Eclipse/Sysdeo-tomcat)

Recently I had to set up a XMLRPC Server. Using Apache’s XMLRPC it should not be that hard to set up.

It wasn’t. But it did not work the first time.

The XMLRPC Serlvet would not be initialized properly because it could not find the XmlRpcServlet.properties file. I was a bit suprised, because I had it in my src/main/org/apache/xmlrpc/webserver path… so why did it not work?

The reason is that whenever you run your Tomcat webserver, configured to look into your project directory (using the tomcat-sysdeo maven plugin) which is set up using maven; you’ll be using your classpath as set up there. If you look into your project->build path settings (tab source), you’ll see that everything under src/main is only including **/*.java, meaning it will not find the properties file at all!

Once I moved the XmlRpcServlet.properties to src/main/resources/org/apache/xmlrpc/webserver (where it belongs), it worked fine.

So remember, classpath, classpath, classpath!

Itunes and Windows 7 64 bit hot-fix – Did it work for you?

In my previous post I have mentioned a Windows hot-fix for the synchronisation bug you may encounter using Windows 7 64 bit and iTunes 9.0.2.

I can see in the stats that many people have found this blog post. The big question remains: Did it work for you?

Please let me know (add a comment to this post).