As I have promised in my previous blog post, I provide you with some pictures of my first two weeks in Boston. In the last couple of days I have already been busy reading lots of papers for my research and didn’t get that much time to explore Boston. Nevertheless, this gallery contains some first impressions of Boston, Cambridge, Harvard University and the surroundings of MIT.
Hello everybody. It has been a long time since my last blog entry. As a few things changed in my life; so basically I am not staying in Munich any more, but I took a trip over to the US to do research for my master thesis at the Massachusetts Institute of Technology in Boston. In the weeks to come, I will hopefully find the time to explain you a bit on my ongoing research on software cost estimation models.
I am in Boston for 5 days now, and I had a amazing experience on Sunday. I did a whale watching tour, and I captured two videos which I want to share with you. You can see this huge creatures live in their natural environment.
In one of my next blog entries, which I hopefully will get the time to write soon, I will share some pictures of Boston and the surroundings with you.
In the summer term 2008, I took part in a seminar on software quality at the chair of Univ.-Prof. Dr. Dr. h.c. Manfred Broy, Technische Universität München. I did extensive research on software quality in general and wrote a paper on the Cost/Benefit aspects of Software Quality Assurance, which I want to present you. The paper points out several interesting aspects on how to optimize investments into various software quality assurance techniques and thus into software quality.
Because of the high quality of the papers written by the seminar participants, the seminar supervisors decided to officially publish the results as working paper of the Technische Universität München. You can find the link to the publication in the links-section at the end of this article.
Please feel free to share your thoughts on this paper.
Cost/Benefit-Aspects of Software Quality Assurance - Abstract:
Along with the ever more apparent importance and critically of software systems for modern societies, arises the urgent need to deal efficiently with the quality assurance of these systems. Even though the necessity of investments into software quality should not be underestimated, it seems economically unwise to invest seemingly random amounts of money into quality assurance. The precise prediction of the costs and benefits of various software quality assurance techniques within a particular project allows for economically sound decision-making.
This paper presents the cost estimation models COCOMO, its successor COCOMO II and COUALMO, which is a quality estimation model and has been derived from COCOMO II. Furthermore an analytical idealized model of defect detection techniques is presented. It provides a range of metrics: the return on investment rate (ROI) of software quality assurance for example. The method of ROI calculation is exemplified in this paper.
In conclusion an overview on the debate concerning quality and cost ascertaining in general will be given. Although today there are a number of techniques to verify the cost-effectiveness of quality assurance, the results are thus far often unsatisfactory. Since all known models make heavy use of empirically gained data, it is very important to question their results judiciously and avoid misreadings.
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Cost/Benefit-Aspects of Software Quality Assurance
Continue reading ‘Cost/Benefit-Aspects of Software Quality Assurance’
Last friday I went to the top Bundesliga clash FC Bayern - TSG Hoffenheim. The Allianz Arena was sold out and the game was exciting down to the wire. FC Bayern won the game 2:1. After the game there was a spectacular light show which was really worth seeing. I posted a short video of the light show on YouTube which you can see here… enjoy:
In the last couple of weeks I have been working a lot with different databases which I had to connect to from Java. It is sometime stressful to look up the right format of the connection string to the database. Even though, these strings should, or are meant to be standardized, they are not.
I found this very helpful website ConnectionStrings.com which lists the connection strings for open-source as well as professional commercial databases. This list includes among others, the connection strings for Microsoft SQL Server 2008, MySQL, Oracle, IBM DB2, Informix, Postgre SQL, Caché, SQLite, …
I want to share this information with you, because it can save you a lot of time, looking up those strings in tutorials or in the documentation of the different databases. Continue reading ‘SQL Connection Strings’
08.08.08: Perfect date for the release of my brother’s new mixtape. He raps in Luxemburgish and is proud to present his first album recorded with his new studio equipment. You may download
T-Way - This Way
for free from his website. Feel free to leave some feedback on this site, as well as on the official T-Way website on Myspace.
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Nach längerer Zeit gibt es dann auch mal wieder einen neuen Eintrag in meinem Blog ;). Ich war die letzte Zeit viel beschäftigt; unter anderem mit dem Verfassen der Arbeit über die es in diesem Eintrag geht:
Im Sommersemester 2008 habe ich im Rahmen des Seminars Wissenschaftler und Ethik an der TUM eine Arbeit über die Freiheit im Internet geschrieben. Hierbei habe ich besonders die Zensur im Internet untersucht und die aktuellen Zensurmaßnahmen in verschiedenen Ländern und insbesondere China analysiert.
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Freiheit im Internet - Ausarbeitung
Freiheit im Internet - Vortrag
