Legal Information and Notice

German "Impressum" here

Website Responsibility

softsyst GmbH
Triebstrasse 41
D-60388 Frankfurt am Main

P +49 (0)6109 609 877 7
F +49 (0)6109 609 877 8
M +49 (0)170 182 628 0


Dr.rer.nat. Clemens Schmidt

Commercial Registries
Amtsgericht Frankfurt am Main
HRB 101192



The contents of this website have been prepared with the highest possible diligence. However, softsyst GmbH will not be liable for any possible losses or damages using this website or in connection with the use of this website.

softsyst GmbH is not responsible for the content of external, linked websites. The sole responsibility for those contents lies with the maintainers of those websites.


All contents of this website may only be used with expressed written consent of softsyst GmbH. In particular, this includes the presentation and circulation in the internet.

Origins and authors of pictures from external sources are copied into the respective pictures and are liable to their respective copyrights. Pictures without authors are owned by softsyst GmbH and are liable to this websites' copyright notice. Logos are liable to the copyrights of their respective owners. The Visual Studio 2013 logo has been adapted from cronoxyd. The Linux "Tux" logo has been adapted from Wikipedia and is copyright by Larry Ewing and The GIMP.


The use of our quizzes presented on this website is licensed under the Creative Commons Attribution-NonCommercial 4.0 International License. This comprises the following parts:

  • Quiz Contents, i.e. the questions and the answers
  • Quiz layout, i.e. the presentation of the whole quiz workflow on this website
  • Quiz workflow
This license only allows private, non-commercial use of the work. Please contact us in case you are interested in a commercial utilisation.


The QIRX SDR is provided as an Open Source Project and licensed under the GNU General Public License. The use of QIRX may be subject to legal restrictions, differing from country to country. The user is responsible for the legal use of QIRX. Under no circumstances softsyst GmbH or Dr.Clemens Schmidt are responsible for possible violations of the law by the use of of QIRX. By downloading QIRX you agree to these conditions.

Privacy Policy

Your login information is neither forwarded, sold nor used in any other way than to provide you with the history of using this website, in particular to provide you with the results of previous quiz attempts. When logged-in, you agree that your login information is stored on our webserver, and might be connected to your actions on this site.

When downloading content from our website your IP-Address is stored on our server in an anonymized form. This information is for internal statistical reasons only and not forwarded to third parties. By downloading you agree to this condition.

This website uses analytical software ("Google Analytics") to enable us to analyse the use of our website. This generates data which are stored on our server and are possibly forwarded to Google. Your IP-Address is stored in an anonymized form. The data are used for our own statistical purposes, in order to improve the services on our website. By using our services you agree to this condition.

In case you do not agree to the storage and evaluation of the data mentioned in the last paragraph, you can opt-out by clicking here.

Please not that in case you delete the Cookies in your browser, you have to "opt-out" again.

  • Cookies help us deliver our services. By using our services, you agree to our use of cookies. Learn more