Arnoldo Díaz

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Real-time scheduling theory has shown an impressive evolution in the past few years. As a consequence of the intensive research done in this area a lot of new scheduling policies had been proposed to date. Nevertheless, just a few of such scheduling policies are available in existing Real-Time Operating Systems (RTOS). In this paper, we describe Realtss, an(More)
— The application-defined scheduling model allows the implementation and use of different scheduling policies in a way compatible with the scheduling model defined in POSIX 1. The new scheduling policies are integrated into a real-time operating system without modifying its internal structure. In this paper, we discuss the application-defined scheduling(More)
In this paper we present an innovative approach to develop a domain ontology in collaborative fashion. This approach is synthesized in a groupware application which is called Co-Protege, a set of plug-ins which extends Protege. This approach is innovative because Co-Protege enables the coexistence of divergent conceptualizations and the discussion thread in(More)
The performance of wireless sensor networks (WSNs) at monitoring time-critical events is an important research topic, mainly due to the need to ensure that the actions to be taken upon these events are timely. To determine the effectiveness of the IEEE 802.15.4 standard at monitoring time-critical events in WSNs, we introduce a routing scheme based on drain(More)
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