摘要： 利用工作流技术建立空间信息工作流,为支持空间信息处理过程的规划和管理提供科学的途径。基于Petri网和UniNet理论,建立了空间信息工作流模型GWPN。该模型利用Petri网和UniNet的诸多优点,兼顾控制流和数据流,并充分考虑了过程中的空间语义约束,准确定义空间信息处理过程,解决了空间应用的特殊性问题。
关键词:
空间信息工作流,
工作流模型,
Petri网,
工作流,
地理信息系统
Abstract: In complex spatial analysis and decision applications, effective plan and management are desired. The geo-workflow technologyprovides a scientific solution to manage such geospatial processes. Based on Petri nets and UniNet theory, a geo-workflow model, named GWPN, ispresented to support the process definition of geo-workflow. With the advantages of Petri nets and UniNet, GWPN can well solve not only thecontrol flows but also the data flows. By combining the spatial semantic constrains, it can define spatial processes precisely to solve particularspatial-referenced issues in GIS applications.
中图分类号:
高勇,刘瑜,邬伦. 基于Petri网的空间信息工作流模型[J]. , 2005, 31(16): 11-13.
GAO Yong1, LIU Yu2, WU Lun2. Geo-workflow Model Based on Petri Nets[J]. , 2005, 31(16): 11-13.