Quantum GIS, which is an open source software to open data, for friends in the spatial and earth fields, you must be familiar with this software, and for friends who are not familiar, don't worry, in the next section there will be a discussion fo deeper for each software, in QGIS there are main sections such as toolbars, menus, table of content and Data Frames. For more detail explaination, we try to directly open the QGIS application here.

Postgresql, which is an open source software for data storage. Actually, besides postgresql, you can also use other software such as mysql, mongoDB, oracle etc. But here I use postgresql because it is very powerful in spatial data storage but it is also easy to connect. , to open PostgreSQL we can look for PgAdmin in the start menu, then enter the username and password that was created during the installation process. After logging in, we create a new database, for example udemy training. But before we first add PostGIS extensions to PostgreSQL, postgis extensions are extensions that can provide spatial functions or geometric functions.

Tableau, Tableau is a Business Intelligence platform to assist in viewing and understanding data. The platform is the result of a computer science project at Stanford founded in 2003. The goal of Tableau is to improve the flow of analysis and make data more accessible to people through visualization.