Orvalho, LuísaMorais, JoãoTeixeira, Carlos2023-04-272023-04-272022-06-201646-9976http://hdl.handle.net/10400.14/40977With this article we intend to review the state of the art regarding Geographic Information Systems (GIS) and recognize the great technological evolution of the last decades. Identifying the objectives of GIS, describing its components, its main uses, functions and characterizing the available software of this technology are the main objectives of this investigation.engGeographic information systemsUsesFunctionsComponentsDesktop GIS applicationsWeb GIS applicationsExplore Porto applicationjournal article10.31112/kriativ-tech-2022-06-76