A growing literature of deep but also surficial fossilized remains lithobiological life, often associated with igneous rocks, necessitates the unfolding a sub-discipline within paleobiology. Here, we introduce term paleolithobiology as new auxiliary under which lithobiology should be handled. We present key criteria that distinguish paleolithobiological archive from traditional one and discuss ...

This paper introduces a new mechanism for specifying constraints in distributed workflows. By introducing constraints in a contextual form, it is shown how different people and groups within collaborative communities can cooperatively constrain workflows. A comparison with existing state-of-the-art workflow systems is made. These ideas are explored in practice with an illustrative example from ...