User layer is composed of client nodes, which can submit tasks to NCDCS.

用户层主要由客户节点构成，NCDCS系统上运行的任务由客户节点提交。

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Main points of the model implementing scheme and designing idea are respectively given for physical layer, data link layer, application layer and user layer.

分别给出物理层、数据链路层、应用层、用户层的模型实施方案及技术要点的设计思想。

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OPC specifications and IEC 61499 standard both are protocols of User Layer of FieldBus Control System(FCS), and both are based on software component technology.

OPC规范和IEC 61499标准在现场总线控制系统中均属于用户层协议，二者都基于组件技术。

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The Biometrics assure the iWatch wearer is the authenticated user and provides an additional layer of authentication, which could be very important across the board from enterprise to personal security.

FORBES: Apple's Rumored iWatch And Why It Matters

Where LucidWorks wants to make its mark is in the layer that sits between the user (or the developer) and this underlying technology, what it calls the Search, Discovery, and Analytics (SDA) layer.

FORBES: LucidWorks: Bringing Search to Big Data

The Intra-Hybrid Blu-ray Disc (IH-BD) incorporates a single BD-ROM layer and a single BD-RE layer so as to enable the user to view, but not overwrite, critical published data while providing the flexibility to include relevant personal data on the same physical disc.

ENGADGET: Blu-ray Discs expand to 128GB under new BDXL spec