The role specification AC and role assignment AC are introduced, the role-based PMI architecture and the role-based PMI security model for E-government is discussed and researched in the paper.

论文介绍了角色规范属性证书和角色指派属性证书，讨论了基于角色的PMI体系结构，探讨了基于角色PMI的电子政务安全模型。

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Also, regarding microarrays, it is noteworthy that the so-called DTC (Direct-to-Customers) Genome Testing is also grabbing a lead-role with the Illumina arrays (e.g. by 23andMe, that has just catapulted its marketing model with the help of a more potent array by Illumina).

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