Bossa is a workflow engine written in Java. The engine is very fast and lightweight, uses a very expressive Petri net notation to define workflows, does not require a RDBMS, and is very simple to use and integrate with Java applications. Actually, it was designed to be embedded. Therefore, Bossa is organized as a library to be used by server-side applications (especially Web-oriented ones) that need workflow services.
GêBR is a simple graphical interface that facilitates geophysical data processing. While it is not a package for processing, it is designed to integrate a large variety of free processing packages. It can handle Projects and Lines, assemble and run processing sequences, and act as an interface to many freely-available seismic-processing packages (such as Seismic Unix, Madagascar, etc.)
Re: What's wrong with gnome? If you are using gnome: Try add the "Run button" ou the Mini-Commander applet to the panel.