The WebGIS system G4VIEW is based on open-source technologies and allows the dissemination and sharing of geographic information, also integrating third-party software products and platforms. The data is managed by robust and efficient database systems such as PostgreSQL supported by PostGIS as a spatial extension.

G4VIEW can operate both on the Internet and intranet and is composed of three main components:
Server and database, where data, access and security are managed
Web server exposed on the Internet that makes data available to authorized clients, through the standard OGC services of Web Map Service (WMS) and Feature Web Service (WFS)
Web Client to expose users to related functions, to perform operations on data such as consultation, construction of new data, execution and updating, spatial analysis, creation of print maps, etc.