| 基于PG图的空间信息服务链建模方法 |
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| 引用本文： | 刘翔,姜双斌.基于PG图的空间信息服务链建模方法[J].后勤工程学院学报,2005,21(2):52-56. |
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| 作者姓名： | 刘翔 姜双斌 |
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| 作者单位： | 湖南理工学院物理与电子信息工程系,湖南,岳阳,414006;后勤工程学院科研部,重庆,400016 |
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| 摘 要： | 空间数据的异构、分布与海量的固有特点导致了空间信息应用的分布与难于集成的现状,成为制约空间数据大规模应用的主要因素。根据服务链的思想,提出了基于PG(优先图)构造服务链图进行空间数据应用集成建模的方法,并定义了一组变换实现对模型的逐步精化和向现实模型转化。该方法在面向资源环境的空间信息应用服务中进行了初步应用。
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| 关 键 词： | 优先图 Web服务 空间数据库 |
| 文章编号： | 1672-7843(2005)02-0052-05 |
| 修稿时间： | 2005年1月17日 |
An Approach to Modeling Spatial Information Service Chain Based on PG Graph |
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| LIU Xiang,JIANG Shuang-bin.An Approach to Modeling Spatial Information Service Chain Based on PG Graph[J].Journal of Logistical Engineering University,2005,21(2):52-56. |
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| Authors: | LIU Xiang JIANG Shuang-bin |
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| Abstract: | It is difficult to integrate spatial information applications because of the distribution and heterogeneous of spatial datasets. In this paper, we present an approach to modeling spatial data application service chain based on the theory of priority graph and Web Service technology. With this approach, single Web services can be aggregated into one complex and extensible service chain. A set of graph transformation is also defined to refine and convert such conceptual model into an operational model. This approach was tested in one of our spatial information service applications. |
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| Keywords: | Priority Graph Web service spatial database |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
