Uma ferramenta para sincronização de conteúdos produzidos pelo software QGIS

Abstract

A Geographic Information System (GIS) project development can involve multiple users. The users need to share the data information among the members of the project. For data sharing There are some alternatives for data sharing. The main available alternatives manage centrally the data an are available in the main GISs systems. Some of data sharing solutions concentrate the information in a data base. We use GISs, geographic DBs, as well some definitions an techniques of software engineer (SE) as concepts to develop a distributed solution. In the methodology we apply an analysis and review of requirements, sub-area of SE, to establish and verify the requirements analysis and revision for implementation of this tool. The implementation was defined in two phases: the first was leaded to the idea of validation and basic functions definitions necessary, the implementation of a server and a functional test; the second phase was leaded to the implementation of a plugin for QGIS. The obtained results in this work was divided in two categories: requirement analysis and implementation. The implementation was subdivided in two phases. During the requirement analysis it was possible to identify the main functions needed by the tool. The tool is composed by a Client, a plugin for QGIS and a Server, that store all the generated informations of the QGIS users. The first phase of the implementation was composed by a server configuration with PostgreSQL data base and the QGIS plugin and the development of a Client able to made synchronizarions operations. We validate the tool and the behavior of this tool. After the validation, it was able to proceed to phase two. This phase was formed by plugin prototipation, plugin development and the usability tests. The generated prototypes was made using Pencil Project software, and provide an abstract vision of how the plugin could to work. The plugin implementations was based on the implementation of first phase and the generated prototypes. Throw the executed usability tests it was possible to identify a critical problem, that made the tool to stop. All the information sent to the server stay stored in a data base. This stored information can be worked in many ways, but the most observed, especially in the requirements analysis, is related to the disclosure of this information through the WMS or WTMS standards, leaving the information or part of that information available for access HTTP.