首先在分析嵌入式实时数据库安全要求的基础上，给出了一个三层安全控制模型。
This passage bulids a secure control model with three layers on the ERTDB security requirements firstly, and then proposes a secure optimistic concurrency control strategy.
另外，IACM建立在基于替代的实时事务模型上，适用于嵌入式实时数据库系统。
In addition, IACM associates with the real time transaction model based on function alterative, so IACM suits for embedded real time database systems.
嵌入式实时数据库系统常常在无人工干预的情况下运行，因此必须具备较高的可靠性。
Embedded real-time database systems must has high reliability because it usually run without human inter-fere.
本文针对嵌入式系统的应用环境和实时数据库系统的数据特征，通过对各种存储器性能的比较，提出了嵌入式实时数据库系统的存储体系结构。
In this paper, we propose a storage architecture for an embedded real time database system according to the data character of real time application and the performance of the storage media.
本文针对嵌入式系统的应用环境和实时数据库系统的数据特征，通过对各种存储器性能的比较，提出了嵌入式实时数据库系统的存储体系结构。
In this paper, we propose a storage architecture for an embedded real time database system according to the data character of real time application and the performance of the storage media.
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