According to the theory of grey system, this paper puts forward a dynamic predication method for evaluating system safety level of forestry enterprise.

运用灰色系统理论，提出了评价林业企业系统安全度的一种灰色宏观动态预测评价方法。

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Demonstration of automated techniques, TAL and automated theorem proving, to verify the safety of the complex low-level code in the operating system and run-time.

它演示了自动化技术、TAL和自动化定理证明，从而验证了操作系统中和运行时复杂的低级代码的安全性。

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A final technical change involves the automation of infrastructure tests (either at unit, integration or system level) which provides a safety net for developers to contribute changes to ops.

最新的技术变革包括自动化基础设施测试(无论是单元测试、集成测试或系统级测试)，给开发人员提供了一张“安全网”，以便放心的对运维进行变更。

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"The Color-coded Threat Level System is used to communicate with public safety officials and the public at-large through a threat-based, color-coded system so that protective measures can be implemented to reduce the likelihood or impact of an attack, " according to the DHS Web site.

CNN: Experts question U.S. terror alert system