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The Covid-19 pandemic transformed the way people interact, necessitating the global adoption of Information and Communication Technologies (ICT) as both established and emerging resources. Although the University of La Guajira had been integrating face-to-face and virtual modalities, resistance was identified among the teaching staff. This research aimed to clarify the role of teachers in the use of these technologies within teaching and learning processes, employing a quantitative, descriptive approach and a non-experimental field design. The study population consisted of 1,062 students, and the sample included 282 students. Data collection was conducted via a Likert scale questionnaire, which obtained a reliability of 0.859 through Cronbach's Alpha. The study concluded that teachers demonstrate command of technology, utilize basic support equipment, and provide procedural support through explanations, collaboration, guidance, and motivation to enhance performance in accordance with the individual needs of each student.

Many works propose to use decentralized models to control and supervise physical systems. The decomposition tasks are, often, executed by an expert on the physical application. Recent works developed at propose method to systematically decompose centralised models based on Petri nets. This method generates redundant information between the sub-modules. In some cases, these redundancies are necessary to guarantee the dependability of the system (by duplicating critical information). It can also be used by the diagnosis algorithm in order to improve the fault isolation (by pointing out the relation between sub-models) and to reduce the maintenance costs (by reducing the number of sub-models that must be modified to update the system). However, the duplication of information introduce extra costs that can be observed by the complexity of keeping the data coherence and by the surcharge of the communication network coming from the data exchange between interdependent sub-models. This paper presents a set of indicators that can be used by the designer's team to evaluate the consequences of redundant information introduction and to help them to decide the most appropriated configuration of the system.

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