Browsing by Author "Vélez Varela, Fernando"
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Item Conceptos y Referencias en Teoría de la Información y las Telecomunicaciones: Aspectos Analógicos(Editorial Universidad Santiago de Cali, 2025-04-25) Vélez Varela, Fernando; Dussan Clavijo, Ciro Antonio; Santafé Ramón, Yesid Eugenio;Item Desarrollo de un módulo de medición de variables eléctricas en transformadores de potencia mediante conceptos de iot(Universidad Santiago de Cali, 2020) Barragán Barón, Pedro Jefferson; Guzmán Atehortúa, Jhon Hadder; Vélez Varela, FernandoThis work details the development of a module that performs measurements of electrical variables in a low voltage power transformer. These variables are sent by means of the IEEE802.11 standard, connecting to a database stored in the cloud; associating IoT concepts with the meter, this to allow a client to perform an analysis, monitoring and management of their electrical network. For the construction of this module, non-invasive current sensors connected to a three-phase meter are used and a communication card is used that allows data to be extracted from the meter and sent to the cloud database. With this module, it is possible to convert a conventional electrical power transformer into an smart electrical power transformer, making it a Smart Object and thus extract information from it telemetrically in real time.Item Metodología práctica de auditoria informática en seguridad lógica para aplicativos contables y financieros en Pymes(Universidad Santiago de Cali, 2019) Cabrera Nuñez, Héctor Fabio; Vélez Varela, FernandoThe article proposes a practical methodology of computer security audit focused on SMEs for accounting and financial applications, collecting, organizing and analyzing information based on a process of conceptual appropriation as audited, evidencing ignorance by executives and company personnel added to the lack of economic resources to have access to professionals trained in computer audit who can evaluate and verify the integrity, availability and reliability of the information in the software; confirming ESET in its security report LATAM 2018, that the theft of information in Latin American companies is 51% (ESET, 2018). The methodology is developed under the Plan-Do-Check-Act (PDCA) framework, which facilitates the process of diagnosing the company's logical security status through review and analysis. The information system S1ESA 8.5, application with 10,000 client companies in 7 Latin American countries (SIESA), is taken as a case study, for the creation of this model, a set of instruments that enable the analysis and evaluation of risks is shown, the techniques used to know and understand the current status of business organizations evaluated and that can be applied to perform security audit processes (Solarte, Rosero, & del Carmen Benavides, 2015) allowing an SME to take the respective actions and controls preventive or corrective, strengthening the logical security of the application and the company's digital ecosystem.Item Trámites y Servicios de Estratificación en la Alcaldía de Santiago de Cali, una Apuesta de gobierno digital(Universidad Santiago de Cali, 2019) Ruales Álvarez, William Eduardo; Vélez Varela, FernandoThis article is a look at the way the local government of the Mayor's Office of Santiago de Cali, promotes a new model of procedures and online services for the community, within the framework of the Anti-Procedures Law and the Digital Government Strategy Ministry of Information and Communication Technologies - (Decree 1078 of 2015, p 65). In its development, it conceptualizes what socioeconomic stratification is, in order to size the services that were the object of innovation in its form of attention to citizens, this is how it identifies the before and after the procedures offered to the community and the impact generated at the administrative and citizen level with the implementation of the new web services based on the development of initiatives and good practices in the use of Information and Communication Technologies (ICT) tools. In addition, it determines success and failure factors in the appropriation of new administrative models that facilitate citizen participation in the framework of the provision of public services and describes how the administration has taken advantage of human and physical resources, with the purpose of improving processes of procedures and services, as an invaluable public management strategy to recover or strengthen the bonds of trust with citizens. Finally, some results obtained in the execution of the project are analyzed and it is determined if the objectives set within the framework of the generation of public value were achieved, where the central axis is the citizen and the use and appropriation of ICT in a vision of business architecture, as a key feature in the modernization of public administration, in order to contribute to the construction of a more efficient and dynamic city in terms of public services.