Flexible Scientific Workflows Using Frames and Dynamic Embedding

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dc.contributor.authorNgu, Anne H. H.
dc.contributor.authorHaasch, Nicholas
dc.contributor.authorMcPhilips, Timothy
dc.contributor.authorBowers, Shawn M.
dc.contributor.authorLudaescher, Bertram
dc.contributor.authorCritchlow, Terence
dc.date.accessioned2007-09-19T22:59:25Z
dc.date.available2012-02-24T10:03:43Z
dc.date.issued2007-04-01
dc.description.abstractCurrent approach to scientific workflow design in the popular open source Kepler system is based on the actor-oriented framework where concrete actors can be hierarchically composed and orchestrated by different directors (schedulers). A common assumption in this design framework is that workflow is static and must be completely specified before orchestration. Such a static and monolithic workflow cannot response to changing runtime conditions. We present flexible scientific workflow design that allows some tasks to be partially specified via abstract actors called Frame. The behavior of a frame is determined at runtime by the embedded concrete actor. We implemented the process of dynamic embedding that can tailor to different selection policies and enable automatic construction of subworkflow to execute the embedded component at runtime. Frames and dynamic embedding provide high level abstractions for specifying workflow that enables flexible execution nested to any level.
dc.description.departmentComputer Science
dc.formatText
dc.format.extent11 pages
dc.format.medium1 file (.pdf)
dc.identifier.citationNgu, A. H. H., Haasch, N., McPhilips, T., Bowers, S., Ludaescher, B., & Critchlow, T. (2007). Flexible scientific workflows using frames and dynamic embedding (Report No. TXSTATE-CS-TR-2007-7). Texas State University-San Marcos, Department of Computer Science.
dc.identifier.urihttps://hdl.handle.net/10877/2598
dc.language.isoen
dc.subjectscientific workflow
dc.subjectembedding
dc.subjectframes
dc.subjectdynamic embedding
dc.subjectComputer Science
dc.titleFlexible Scientific Workflows Using Frames and Dynamic Embedding
dc.typeTechnical Report

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