网络策略控制技术

随着网络系统管理和控制技术发展的复杂性,网络策略控制技术引起人们的关注。介绍国外网络策略控制技术的最新研究现状,从基于策略的管理、策略中间件两方面进行阐述。介绍国内网络策略控制技术的研究现状,并指出国内同类技术存在的不足之处;指出以基于语义的数字策略描述语言、策略冲突检测技术、基于策略审核批准技术、基于数字策略的自动部署和自治执行技术等四个方面作为该领域的研究方向。

基于云架构的油气藏数据智能管理技术

油气藏数据是油气藏研究及开发的重要基础,由于数据源的异构性和集成机制的不完善,造成大量数据的分离,严重影响了油气藏研究及开发决策等的高效运行。为此,结合中国石油长庆油田公司数字化油气藏研究系统建设目标,通过分析油气藏各异构数据集之间的依赖关系以及业务需求和数据中心之间的相关度,提出了一种云架构环境中基于Wrapper/Mediator策略无缝整合异构数据和基于MapReduce并行框架的大规模数据处理技术:①应用Wrapper/Mediator策略将异构数据进行无缝整合,形成标准数据流;②应用云计算技术进行数据流模式设计,通过数据流驱动服务请求,引入MapReduce模型及其改进技术进行数据流的并行、实时处理。初步应用结果表明,该技术可保障油气藏研究与开发决策业务的并行运行,实现决策的实时生成,减少了油气藏研究的成本投入,具有较强的推广应用价值。

Distributed heterogeneous inspecting system and its middleware-based solution

There are many cases when an organization needs to monitor the data and operations of its super-vised departments, especially those departments which are not owned by this organization and are managed by their own information systems. Distributed Heterogeneous Inspecting System (DHIS) is the system an organization uses to monitor its supervised departments by inspecting their information systems. In DHIS, the inspected systems are generally distributed, heterogeneous, and constructed by different companies. DHIS has three key processes-abstracting core data sets and core operation sets, collecting these sets, and inspecting these collected sets. In this paper, we present the concept and mathematical definition of DHIS, a metadata method for solving the interoperability, a security strategy for data transferring, and a middleware-based solution of DHIS. We also describe an example of the inspecting system at WENZHOU custom.