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Abstract-Find areas and indicators of achievement where students need to reinforce their knowledge is a difficult task for teachers in schools. This article presents a decision-making support system that allows teachers to identify students with poor academic performance. The strategy is a Matrix Based Recommender System to rate assessments and share the results using statistical graphs. To validate this proposal we used focus group and daily meetings methodologies. The proposed strategy was tested in UGEL07-Lima-Perú with 135 schools and 25491 students in evaluation process. The evaluation results show that teachers agree with the proposed strategy, because it allows them to have assessment information everywhere and at every time. The results also highlight that using the tool users can have visual information in real time. Furthermore, the information shared through the application improves decision-making on corrective actions for poor academic performance in evaluated areas.

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Information systems have played an important role in organizations, especially in the business field. Organizational semiotics is one of the social technical approaches that considers information through the signs, norms or activities performed within an organization. This paper proposes a conceptual design of the boundary between information systems and organizational semiotics. To perform this task, a Point of Sale (POS) information system for a restaurant was developed as a case study in Apurimac Peru. The system allows the waiter to customize the food and drink orders. To validate this proposal three type of techniques were performed: document review, observation and interview. Also participated in the proof of concept the following people: waiter, customer, owner, cashier and cook. The collected results highlight the three layers and the morphology in the restaurant information system linked to organizational semiotics.