GPFlow: an intuitive environment for web‐based scientific workflow

Rygg, Asbjørn; Roe, Paul; Wong, On; Sumitomo, Jiro

doi:10.1002/cpe.1216

Cited by 14 publications

(18 citation statements)

References 11 publications

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“…This work extends our previously reported GPFlow system [2] -which leverages a commercial workflow system -by carefully applying the principles of structure data flow to produce a system focused on comparative studies.…”

Section: Introductionmentioning

confidence: 80%

Comparative Studies Simplified in GPFlow

Buckingham

Hogan

Roe

et al. 2008

Computational Science – ICCS 2008

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Abstract. We present a novel, web-accessible scientific workflow system which makes large-scale comparative studies accessible without programming or excessive configuration requirements. GPFlow allows a workflow defined on single input values to be automatically lifted to operate over collections of input values and supports the formation and processing of collections of values without the need for explicit iteration constructs. We introduce a new model for collection processing based on key aggregation and slicing which guarantees processing integrity and facilitates automatic association of inputs, allowing scientific users to manage the combinatorial explosion of data values inherent in large scale comparative studies. The approach is demonstrated using a core task from comparative genomics, and builds upon our previous work in supporting combined interactive and batch operation, through a lightweight web-based user interface.

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Section: Introductionmentioning

confidence: 80%

Comparative Studies Simplified in GPFlow

Buckingham

Hogan

Roe

et al. 2008

Computational Science – ICCS 2008

Self Cite

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“…Rygg et al [18] present an intuitive workflow environment called GPFlow to support scientists with their research. The workflow in GPFlow wraps legacy tools and presents a high-level interactive Web-based graphical interface to scientists, so that they can access and execute their scientific workflows.…”

mentioning

confidence: 99%

Special Issue: First International Workshop on Workflow Systems in Grid Environments (WSGE2006)

Chen

Rana

2007

Concurrency and Computation

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“…To the best of our knowledge, GPFlow (Rygg et al 2006) and MediGrid (Krefting et al 2009) are two workflow-based gateways that support interactive workflows. GPFlow supports interactions between running workflows and users by associating a Web interface with each component.…”

Section: Workflow Execution Monitoring and Interactionmentioning

confidence: 99%

“…As discussed in Section 2.2.4.3, MediGrid (Krefting et al 2009) and GPFlow (Rygg et al 2006) are two workflow-based gateways that support human-workflow interactions to the best of our knowledge. GPFlow workflows are state-based; each component of the workflow can be in either running or suspended state, and user inputs are processed at suspended state (Rygg et al 2006).…”

Section: Hitl In Workflow-based Science Gatewaysmentioning

confidence: 99%

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Interacting with scientific workflows

Nguyen¹

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Scientific workflow technology has become a de facto standard in e-Science. It provides a powerful unifying platform that allows scientists to build arbitrarily complicated applications by combining predefined components. With a wide range of components, with the functions ranging from acquiring data inputs from sensors, querying databases, performing data-mining, performing execution, through to visualising the results, this paradigm allows scientists to automate, manage and execute various steps in scientific research. Although powerful, scientific workflow systems still require some programming knowledge, which might not be optimal for many scientists.Recently, scientific workflows have been integrated into the Web, creating workflow-based science gateways. These gateways allow scientists to launch large-scale computational experiments without concern for the underlying complexity of the infrastructure. This approach delivers scientific workflows to more scientists and is becoming increasingly popular.To date, much workflow-based science gateway development effort has been invested in creating user-friendly and secure interfaces to setup parameters, execute workflows and collect results.However, interaction between users and executing workflows has not received a lot of attention.Scientific workflows have typically been executed in batch mode. This model does not work with human-in-the-loop workflows, which require continuous interaction between users and executing workflows.A fundamental contribution of this thesis is to show that gateways can support complex humanworkflow interactions, facilitating monitoring and steering of the workflow execution as it progresses. This is important because scientific workflows increasingly require user decisions and interactions at various steps; human decision-making is an important component of real-world computational science. In order to achieve this goal, the thesis presents the design, implementation and demonstration of WorkWays, an interactive workflow-based science gateway for supporting development and execution of human-in-the-loop scientific workflows. WorkWays consists of two distinct frameworks with well defined APIs and bindings: a framework that enables humanworkflow interaction and a framework for workflow development and execution.iii I acknowledge that an electronic copy of my thesis must be lodged with the University Library and, subject to the policy and procedures of The University of Queensland, the thesis be made available for research and study in accordance with the Copyright Act 1968 unless a period of embargo has been approved by the Dean of the Graduate School.I acknowledge that copyright of all material contained in my thesis resides with the copyright holder(s) of that material. Where appropriate I have obtained copyright permission from the copyright holder to reproduce material in this thesis.

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GPFlow: an intuitive environment for web‐based scientific workflow

Cited by 14 publications

References 11 publications

Comparative Studies Simplified in GPFlow

Comparative Studies Simplified in GPFlow

Special Issue: First International Workshop on Workflow Systems in Grid Environments (WSGE2006)

Interacting with scientific workflows

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