Abstract
Triquetrum is an open platform for managing and executing scientific
workflows that is under development as an Eclipse project. Both
Triquetrum and Kepler use Ptolemy II as their execution engine.
Triquetrum presents opportunities and risks for the Kepler
community. The opportunities include a possibly larger community
for interaction and a path for Kepler to move from Kepler's one-off
ant-based build environment towards a more common OSGi-based
environment and a way to maintain a stable Ptolemy II core. The
risks include the fact that Triquetrum is a fork of Ptolemy II that
would result in package name changes and other possible changes. In
addition, Triquetrum is licensed under the Eclipse Public License
v1.0, which includes a patent clause that could conflict with the
University of California patent clause. This paper describes these
opportunities and risks.