The STMNC add security layer on traditional network-component system model, it insures secure communication between client and network-components.

在传统的网络构件体系模型上增加了安全层，它确保了客户和构件之间通信的安全性。

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This model is better in security and flexibility than traditional security toolkits.

该模型在安全性、灵活性上有较大的提高。

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According to the shortcomings of the traditional PDM security management, this paper establishes a workspace-based authorization management model and a DPDM network security model.

本文针对传统PD M安全管理的缺点，建立了基于工作空间的权限管理模型和网络安全模型。

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