GdT programmation / séminaire IRILL


On the provenance of Free and Open Source Software and the legal implications of its reuse

Thursday, March 21, 2013
Speaker(s) : Daniel GERMAN

Free and Open Source Software (FOSS) has become an important source of components to reuse, in both commercial and non commercial software. While these components are free (i.e. gratis) they are made available with a license that indicates the conditions under which it can be used. As a consequence, the license of a component might restrict how it can be reused. In this talk I'll describe our recent work regarding reuse of FOSS components:
  • The problem of provenance discovery in FOSS. Components are frequently distributed in binary form, making it difficult to trace back their origin. In other cases code snippets are copied from one product to another. I'll describe Joa, a system that is capable of finding the provenance of Java classes in both binary and source code form.
  • The problem of license compliance and auditing: how to determine if a software system is satisfying all the legal constraints imposed by the components it reuses. I'll describe Ninka, a system for license identification, and a model that puts together Joa and Ninka to do license compliance of Java applications.

More details here …
Emmanuel.Chailloux (at)