Distributed and Parallel Databases - Special issue: Research topics in distributed and parallel databases
Coloured Petri nets: basic concepts, analysis methods and practical use, vol. 2
Coloured Petri nets: basic concepts, analysis methods and practical use, vol. 2
Updates and view maintenance in soft real-time database systems
Proceedings of the eighth international conference on Information and knowledge management
Real-time UML (2nd ed.): developing efficient objects for embedded systems
Real-time UML (2nd ed.): developing efficient objects for embedded systems
Deadline Scheduling for Real-Time Systems: Edf and Related Algorithms
Deadline Scheduling for Real-Time Systems: Edf and Related Algorithms
Current and future applications of mobile and wireless networks
Communications of the ACM
Evaluation of concurrency control strategies for mixed soft real-time database systems
Information Systems - Databases: Creation, management and utilization
A Formal Characterization of Epsilon Serializability
IEEE Transactions on Knowledge and Data Engineering
A QoS-Sensitive Approach for Timeliness and Freshness Guarantees in Real-Time Databases
ECRTS '02 Proceedings of the 14th Euromicro Conference on Real-Time Systems
QoS-Aware Distributed Query Processing
DEXA '99 Proceedings of the 10th International Workshop on Database & Expert Systems Applications
ICDE '00 Proceedings of the 16th International Conference on Data Engineering
The design of an acquisitional query processor for sensor networks
Proceedings of the 2003 ACM SIGMOD international conference on Management of data
Fault-Tolerant Static Scheduling for Real-Time Distributed Embedded Systems (Extended Abstract)
ICDCS '01 Proceedings of the The 21st International Conference on Distributed Computing Systems
Object-based semantic real-time concurrency control
Object-based semantic real-time concurrency control
Pessimistic Concurrency Control and Versioning to Support Database Pointers in Real-Time Databases
ECRTS '04 Proceedings of the 16th Euromicro Conference on Real-Time Systems
Managing Deadline Miss Ratio and Sensor Data Freshness in Real-Time Databases
IEEE Transactions on Knowledge and Data Engineering
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Real-time database management systems (RT-DBMS) have the necessary characteristics for providing efficient support to develop applications in which both, data and transactions have temporal constraints. However, in the last decade, new applications were identified and are characterized by a large geographic distribution, high heterogeneity, lack of global control, partial failures and lack of safety. Besides, they need to manage large data volumes with real-time constraints. Scheduling algorithms should consider transactions with soft deadlines and the concurrency control protocols should allow conflicting transactions to execute in parallel. The last ones should be based in their requirements, which are specified through both quality of services functions and performance metrics. In this work, a method to model and develop applications that execute in open and unpredictable environments is proposed. Based on this model, it is possible to perform analysis and simulations of systems, to guide the decision making process and to identify solutions for improving it. For validating the model, a case study considering the application domain of sensors network is discussed.