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Scientific workflow systems are used to integrate existing software components (actors) into larger analysis pipelines to perform in silico experiments. Current approaches for handling data in nested-collection structures, as required in many scientific domains, lead to many record-management actors (shims) that make the workflow structure overly complex, and as a consequence hard to construct, evolve...
XML process networks are a simple, yet powerful programming paradigm for loosely coupled, coarse-grained dataflow applications such as data-centric scientific workflows. We describe a framework called Delta-XML that is well-suited for applications in which pipelines of data processors modify parts ("deltas") of XML data collections while keeping the overall collection structure intact. We...
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