Additionally expected client applications (e.g. Firefox) and systemic prerequisites for the psikeds:servers (e.g. GNU/Linux, Apache Tomcat) use their own licenses. psiKeds does not want to influence these licensings. Moreover, we are explicitly asking the psiKeds users to respect these other license constraints too.
psiKeds is a Maven based development. Hence, if you build your own version on the base of the psikeds git repository, it is up to you, to fulfill the requirements of all the components, Maven loads down into your maven repository.
Background: Maven offers a great advantage: It allows to specify only some aspects of a needed component. Then Maven loads automatically down any instance which fulfills these underdetermined requirements. This advantage is a disadvantage too: The developing distributor itself can not anticipate which components Maven will load down into the repositories of those users who build their own version of the program. Unfortunately, the distributor is therefore also not able to fulfill all conditions of the components. It must be the user himself, who organizes and integrates all required license fulfilling elements into that package maven has collected for him.
Licensing psiKeds in general ...
The purpose system induced knowledge entity delivery system is intended to be usable without (nearly) any restrictions - even in commercial contexts. Therefore, psiKeds wants to be free software: On the one hand, the developers want to assure that the psiKeds kernel (server:server) is free software and stays free software for ever and for each user. On the other hand, psiKeds wants to enable third parties to develop and distribute additional tools, simplifying supplements or improving replacements (if necessary also under other licenses and even if the psiKeds authors themselves prefer to develop and use free and open source software). Therefore, the psiKeds components are licensed under different (open source) licenses:
... and in detail
|The psiKeds:server:server and all its specific psikeds libraries, modules, plugins, and scripts are licensed under the AGPL v3.0: [... more]|
|The psiKeds:client:server as whole is licensed under the GPL v.3.0: [... more]|
All psikeds specific libraries which are constituting the psikeds:client:sever are licensed under the LGPL v.3.0: [... more]
|The psiKeds XSD is licensed under the Creative Commons share alike 3.0 license. [... more]|
|The psiKeds knowledge bases belong to their knowledge engineers [... more] .|
|The knowledge base editors can be licensed under any license. Some editor(s) generated by the psiKeds project will be published as open source software.|
|Contributors to the psiKeds project have to sign a psiKeds specific contributor license agreement which shall protect the contributors and the users against unreasonable consequences.|