A practical approach to developing a web-based geospatial workflow composition and execution system

International Conference and Exhibition on Computing for Geospatial Research & Application Pub Date : 2012-07-01 DOI:10.1145/2345316.2345341

Jianting Zhang

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引用次数: 6

Abstract

Motivated by lacking the capability of supporting geospatial workflow composition and execution in a Web environment from leading GIS (such as ESRI ArcGIS), we have developed a prototype system by integrating mature open source and commercial software packages in an innovative way. Our prototype system includes a client module for visual and interactive workflow editing based on Ptolemy II (a modeling and design system), a geospatial actor library representing 500+ ArcGIS geoprocessing tools for drag-and-drop-based workflow composition, a middleware as a workflow engine to schedule and execute ArcGIS Geoprocessing tools based on composed geospatial workflows, and, a Web-GIS to visualize original and derived data along a workflow processing pipeline. By reusing the mature software packages, we are able to complete the prototype development within weeks instead of months or years. A site selection problem that involves multiple geospatial operations are used to demonstrate the functionality and features of the prototype system.

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开发基于web的地理空间工作流组成与执行系统的实用方法

由于缺乏领先的GIS(如ESRI ArcGIS)在Web环境中支持地理空间工作流组合和执行的能力，我们以创新的方式集成了成熟的开源和商业软件包，开发了一个原型系统。我们的原型系统包括一个客户端模块，用于基于托勒密II(一个建模和设计系统)的可视化和交互式工作流编辑，一个地理空间actor库，代表500多个ArcGIS地理处理工具，用于基于拖放的工作流组合，一个中间件作为工作流引擎，用于调度和执行基于组合地理空间工作流的ArcGIS地理处理工具，以及一个Web-GIS，用于沿着工作流处理管道可视化原始和派生数据。通过重用成熟的软件包，我们能够在几周内完成原型开发，而不是几个月或几年。一个涉及多个地理空间操作的选址问题被用来演示原型系统的功能和特征。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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International Conference and Exhibition on Computing for Geospatial Research & Application

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