Master Thesis

August 5, 2013

A number of years ago I wrote my master thesis.  However, I never shared the results nor the thesis itself on a larger scale.  Which is unfortunate as I think the findings of the research might be useful to those interested.   The first link is the PDF copy of the paper, and the second is the data collected from the questionnaire.

Below is the abstract:

This paper presents the research on the motivation of Open Source developers and the influence of the motivational factors on the choice of license restrictiveness. The research results in a detailed description of Open Source software development, a literature review resulting in an integral framework for theoretical and conceptual model and the questionnaire to measure the conceptual model. The integral framework is an improvement of models used in current literature, and both the conceptual model and questionnaire can be used for future research. The results of the performed survey shows motivational factors held by the developers (control in community, altruism, goals of project, self-marketing and reputation) to be of influence on the choice of license restrictiveness.
Keywords: Open Source, motivation of developers, license restrictiveness, questionnaire

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Tour de France ringtone.

July 14, 2009

mp3 logoIn the spirit of the Tour de France, I have created a special ringtone! Available as MP3 download.

Update: link has been refreshed.

Screenshot in VMware Fusion

June 18, 2008

Sadly the business world is a Windows world, which means I need Windows on my MacBook Pro to earn some money.. I’ve been using VMware Fusion for a while. Unfortunately the standard key mapping for “Print Screen” is F13, which is not included on my MBP keyboard. The solution I found was to key map a different function key myself using the free application SharpKeys.

I’ve chosen the F8 button (you need to hold the fn key as well), below is a screenshot of the correct setting. After writing the setting in the registry and rebooting Windows, my F8 key is screenshot-ing away! You can also make screenshots of the most front window by using alt-F8.

Polar running-data in Excel

February 15, 2008

I’ve been using the Polar RS200sd running computer for about 2,5 years now. Only recently I started using as I couldn’t upload the data before (thank you Crossover for Mac!). Unfortunately I didn’t like the web-interface; it didn’t show me all the info and I couldn’t export it to Excel files. Luckily I found a program that converts the Polar SonicLink audio in CSV files, which Excel or any other spreadsheet application can easily read. Instead of manually copying all the data fields into a schedule I created a template which does this for you!

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Save torrent attachments

October 14, 2007
For a while we’ve been using our fileserver as a torrent box. It runs Azureus 2.4.0 headless: without the über slow java GUI. To control it we use the very simple and elegant Azureus widget. This is also the reason it runs 2.4.0; it’s the only version working nicely with the widget.

This is great when you’re at home, but how to add torrents to the download queue when you’re not? Of course you can open your network and work with a web based interface, but it’s a security hazard and not everybody knows how dyndns works. This is how I fixed it: send e-mails with .torrent attachments to a dedicated e-mail address. Let check this dedicated e-mail address every 5 minutes or so and when it detects a .torrent file, save it to the Azureus dropbox. After the break I’ll show you the Applescript code and the rules.
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March 29, 2007

You can download the AdiTunes script here. I’ve also made a PDF of the old plugin page with all the comments which might be helpful if you run into any problems.

Update: I have refreshed the downloads.

Aditunes – Make your duck sing!

March 10, 2007

A while ago I wrote a plugin/script for Adium. It facilitates sharing the current song in iTunes with your chat partner. It is/was quite popular with over 16.000 downloads and an average score of 4.2 out of 5. Unfortunately I didn’t have the time to support the script anymore, that’s why “Adium” kicked it off the extras site. Below is a link where you can still download the script. I’m hoping someone likes the idea and maybe improve it. All the code is public and open for anyone to alter.
The plugin page.
PS. Please don’t ask me for technical support, as I said I don’t have time for it anymore. There is a read me included with instructions and tips if you run into trouble.
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March 10, 2007

Welcome to this blog. This is my public blog which I don’t use often. Please visit my photoblog at


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