This study intended to build up a profile of a physical education teacher, as well as a description of the conditions available to the practice in state schools. It was based on a questionnaire answered by 2700 teachers who work in Sao Paulo. It was revealed that the average teacher is between 30 and 40 years old, 77% of them come from private schools, 64.69% have more than 10 years of experience, 61.32% teach for more than 30 hours/week, 53.47% have changed schools at least 3 times in the last 5 years, and 87% of them listed the pedagogical material as their main problem.
Event-Condition-Action (ECA) rules offer extensible and flexible approach to realizing active Enterprise Information Systems. Such systems are enabled to actively respond on events or state changes. Hence their behavior is programable by means of ECA rules. We propose an implementation of ECA rules in a completely logical framework, usingTransaction Datalog ¬ as an underlying logic. In this way, we extend the current ECA framework by means of powerful and declarative semantics, which also have an appropriate procedural interpretation. We show how a logical calculus of Transaction Datalog ¬ can be exploited for realizing composite events, conditions, and actions; justifying the use of declarative semantics for solving some of the existing issues in reactive systems.
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