Elaboração do aplicativo SIG-WEB para disponibilização de dados da iniciativa Rio Vivo no CBH-Piranga

Abstract

The Brazilian management of water resources faces different types of barriers. Among these, there is the flow of information between the entities of the system. For several times, rivers basin committees do not have free access to information on programs and investments in a quick and available way at any time. Given this current condition, measures must be taken to contribute to the transparency of the system. One way to achieve this goal is through the development of information technologies, such as maps displayed on the web. Therefore, the objective of this work is the development of a Geographic Information System (GIS) application for the provision of data from environmental programs executed in the Piranga river basin. In this sense, the Rio Vivo collected data, which was carried out from 2017 onwards, was requested. To create the platform, the WebApp Builder system, from ArcGis Online, was chosen. To ensure the quality of data interpretation, the theoretical frameworks of thematic cartography and the usability measure were applied through ISO NBR 9241-11 of 2002. Finally, use tests were applied with 24 participants who experienced the quality of three versions of the product. In addition to submitting the web GIS versions to a sample of users, tests were performed that were not based on the users' experience, which was visual complexity, by counting elements with different colors and contrast - carried out using the Adobe Color application. As a result of the tests with the participants, feedback from each user was obtained, allowing for an improvement based on their experience. In addition, the methodology provided a measure that helped in choosing the best version among the three initially developed, which was version 02, which had the best usability performance (UX) among all others, reaching 3.82/5 points in efficiency, 3.81/5 at effectiveness, and 4.51/5 in satisfaction, totaling 4.12 points out of five in the metric. When analyzing the visual complexity of the three web GIS test versions, the following results were produced: the most complex version among those submitted to the method was version 01 (0.22 points), which had the performance value of the analysis not based on users (An) lower of the three (4.78), while versions 02 and 03 had similar values (4.87). The first version had the greatest visual complexity due to the decision to opt for a layout with more graphic elements with different colors and also to have all the layers already activated in the map when it starts. The analysis not based on users showed that there is an interaction between the participants' experience and the complexity measured by the adopted methodology. That is, the greatest user experience value coincided with the less visually complex version. A maintenance plan for the web GIS was proposed, and a tutorial was prepared to facilitate its use. Finally, the present work produced an easy-to-use application that allows the user to consult the information that was produced by the Rio Vivo initiative and also produce new data within the platform. With the tools available, the user can go into the field and collect location data and even convert them to different cartographic projections. Anyone interested in the platform can also be carried out on rural properties or in other regions and territories with a measurement tool, which can measure distances, areas, and points. Furthermore, the generated web map can still be used in various applications that can be transformed or incorporated into it with layers as a service. It is expected that the results and products of this dissertation will have an impact on the water resources system, about the transparency of the information generated by the actions of environmental programs in the Doce River basin.