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作者 T.F.Keefe M.B.Thuraisingham +1 位作者 w.t.tsai 范宏深 《计算机工程与科学》 CSCD 1991年第1期18-30,共13页
本文介绍了几种技巧,可以使权限级(clearance level)不相同的用户在不违反数据库管理系统安全性的情况下,访问各个敏感级的数据。
关键词 数据库 安全 查询 数据处理
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Collaborative software design in an SOA environment 被引量:4
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作者 w.t.tsai 《Science in China(Series F)》 2006年第6期821-842,共22页
Based on the current Service-Oriented Architecture (SOA), this paper proposes a new collaborative software design methodology in an SOA Environment: the Global Software Enterprise (GSE). The current SOA is produc... Based on the current Service-Oriented Architecture (SOA), this paper proposes a new collaborative software design methodology in an SOA Environment: the Global Software Enterprise (GSE). The current SOA is producer-centric, in which the service providers publish services that they produce and let the consumers to search avail- able services to compose their applications. GSE is build on top of Consumer-Centric SOA (CCSOA), in which the application builders publish their application requirements for the service providers to follow when producing or customizing services to support the application. This new methodology reduces the workload and improves the application description capability of the service consumers. It also extends the capacity of design and code sharing, and thus further improves the software productivity. This paper presents the concepts, architecture, enabling techniques, and illustrative examples of collaborative software design in GSE. 展开更多
关键词 SOA Global Software Enterprise (GSE) CCSOA software productivity
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