El presente trabajo de investigación tiene como objetivo analizar la relación de las acciones post-venta que aplican las empresas y la relación que existe con la satisfacción de los consumidores del sector de restaurantes. Las acciones más relevantes que se consideraron son la acción post venta de delivery, garantía, personalización de producto y la capacidad de respuesta de la empresa al consumidor. Para realizar el objetivo se emplea un análisis cuantitativo con la ejecución de 384 participantes del público objetivo para el desarrollo de encuestas determinadas con fundamento en un 95% de nivel de confianza y un 5% de error a través de un formulario adaptado en base a la escala de Likert con rangos de 1 a 5 codificando los niveles de satisfacción desde “completamente insatisfecho” hasta “completamente satisfecho” respectivamente. Se ha encontrado que la consecuencia que estas variables tienen en los consumidores influye en la satisfacción que estos poseen sobre la empresa donde adquirieron el producto o servicio. Dentro de los alcances y limitaciones encontradas para la presente investigación se consideró los cambios de hábitos de consumo del consumidor, la reducción de actividades en restaurantes en 93,78% y la reducción de ingresos del sector que se encuentran al 40% de su potencial pese al impulso del delivery, debido al confinamiento causado por el SRAS-CoV.19 desde marzo del 2020. / The present research work aims to analyze the relationship of the after-sales actions applied by companies and the relationship that exists with the satisfaction of consumers in the restaurant sector. The most relevant actions that were considered are the post-sale action of delivery, guarantee, product customization and the response capacity of the company to the consumer. To carry out the objective, a quantitative analysis will be used with the execution of 384 participants of the target audience for the development of surveys determined based on a 95% confidence level and a 5% error through a form adapted based on the Likert scale with ranges from 1 to 5 coding the levels of satisfaction from "completely dissatisfied" to "completely satisfied" respectively. It has been found that the consequence that these variables have on consumers influences their satisfaction with the company where they purchased the product or service. Within the scope and limitations found for this research, changes in consumer consumption habits, the reduction of activities in restaurants by 93.78% and the reduction of income in the sector, which are 40% of their potential despite to the delivery impulse, due to the confinement caused by SARS-CoV.19 since March 2020. / Trabajo de investigación

This PHD is about design as a tool of interaction based in information systems, allowing not only to understand the relationship of design with the user, as also, based on User Centered Design, to create a methodology that solves real problems derived from its personal needs. In the case study, the work was based on People with Special Needs, which by their limitations spend much of their day sitting and consequently end up suffering from pressure ulcers. From the research methodology resulted an approach that in a first stage relates psychophysical data acquisition and processing derived from information systems, in an approximation to semiotics. In a second stage an application has been developed in LabView for the integration and processing of data relating to acquisition of user data and data regarding the characteristics of materials and prototyping processes. The result is a file that can be interpreted by CAD systems. The third and final phase, based on the interpretation of the data in the CAD system, allows exporting the information to a CAM system and consequently the production of a customized product through rapid manufacturing technology. The work developed resulted in an integrated system called "Core System" divided by modules that allows management of all information in real time regardless of the inputs of each of its sub-modules, allowing each of these changes to be reflected in the final result. The application is the result of research work that relates the different multidisciplinary areas, building, based on correlations and data validation by specialized technicians, information processing models. / Este trabajo aborda el papel como herramienta de interacción basada en los sistemas de información permitiendo no sólo entender mejor la relación del diseño con el usuario y, basándose en el Diseño Centrado en el Usuario, crear una metodología que solucionase problemas reales resultado de una necesidad personal. En el caso de estudio el trabajo se basó en personas con necesidades especiales, que por sus limitaciones pasan gran parte del día sentados, y por eso con el tiempo sufren de úlceras por presión. De la metodología de investigación resultó un enfoque que en una primera etapa relaciona la adquisición y procesamiento de datos psicofísicos en una aproximación a la semiótica partiendo de sistemas de información.