RIA: Semantic Concurrency Control for Real-Time Object- Oriented Databases

RIA：实时面向对象数据库的语义并发控制

• 批准号: 9308517
• 负责人: Victor Fay-Wolfe
• 金额: $ 9.9万
• 依托单位: University of Rhode Island
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1993
• 资助国家: 美国
• 起止时间: 1993-08-01 至 1997-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9308517&HistoricalAwards=false
• 关键词: RIA; Semantic; Concurrency; Control; Real

RIA: Semantic Concurrency Control for Real-Time Object-Oriented Databases This research addresses the design of concurrency control techniques for real-time object-oriented databases. There are two components to the research: (1) development of a formal schema model of a real-time object-oriented database system; and (2) development of real-time concurrency control techniques that employ application semantics and imprecision to support enforcement of all of the forms of constraints in a real-time object-oriented database. These forms of constraints are: data object logical consistency constraints, data object temporal consistency constraints, transaction logical consistency constraints, and transaction timing constraints. The concurrency control technique uses a concurrency control component encapsulated within each object that expresses conditional compatibility and semantic locking of object methods. This project implements the semantic real-time concurrency control techniques using a prototype real-time object-oriented database system. The research is useful in real-time control applications with large amounts of time-constrained data, such as: medical intensive care patient monitoring, vehicle control, manufacturing, and programmed stock trading; as well as for introducing a better general paradigm for management of real- time data in complex applications.

RIA：实时面向对象数据库的语义并发控制 这项研究致力于实时面向对象数据库的并发控制技术的设计。 该研究有两个组成部分：（1）开发实时面向对象数据库系统的形式模式模型； (2)开发实时并发控制技术，该技术利用应用程序语义和不精确性来支持实时面向对象数据库中所有形式的约束的执行。这些形式的约束是：数据对象逻辑一致性约束、数据对象时间一致性约束、事务逻辑一致性约束和事务时序约束。 并发控制技术使用封装在每个对象内的并发控制组件，该组件表示对象方法的条件兼容性和语义锁定。 该项目使用原型实时面向对象数据库系统来实现语义实时并发控制技术。 该研究可用于具有大量时间受限数据的实时控制应用，例如：医疗重症监护患者监测、车辆控制、制造和程序化股票交易；以及引入更好的通用范例来管理复杂应用程序中的实时数据。