Web计算：针对Web资源的网络计算

随着Web技术的不断发展和普及,它已经从最初的人类社会的辅助设施逐渐形成为一个与现实世界相对应的Web世界（Web-wide World）,作为现实世界的映像,与现实世界紧密的融合在一起.因此,Web计算已经成为推动并主导人类社会发展的越来越重要的因素.文章通过研究和分析Web的发展以及Web和Grid相互融合的趋势两大背景,将Web计算定位为一种Web资源的组织、管理和使用的分布式模型和技术.然后,分析了Web计算所具有的特点,如普遍性、连通性、位置透明性等;进一步,总结了Web计算研究所必须面临的一些任务,包括资源标识与定位、资源表示、资源传输以及信任管理.其中,Web世界的信任管理研究,将是Web计算研究的一个重要的方向和趋势,其目的就是为了提供一个诚信、合作的信任Web（Web of Trust）.

Web Computing:The Network Computing of Web Resources

After a long-term development and population,the World Wide Web(Web for simplification)has been becoming a "Web-Wide World"(Web World for simplification)as a mirror and extension of our real world,and has been interweaving and linking with the real world deeply.Thus,Web computing is becoming a more and more important,even leading,factor in the development of our human society.In this paper,the evolution of Web is analyzed and that Web will merge with Grid computing as a conclusion is drawn.Thus,Web Computing can be treated as models and relating technologies for organization,management and utilization of Web Resources.Then,the characteristics of Web Computing are listed,such as university,connectivity and simplicity etc.At last,the emergent tasks of Web Computing researching,including resource identification and location,resource representation,resource transportation,and trust management,are talked.Among these tasks,trust management is the most emergent issue,and its aim is to provide a sincere,trustful and cooperative Web of Trust.