The importance, necessity and complexity associated
with water resources planning and management can be
facilitated by the design and implementation of information
systems based on spatial databases. In this context, this paper
presents a case study of a browser-based geoviewer, built on open
source software, which provides the access and visualization of
geographic databases concerning water resources
characterization, planning and management, the query based on
alphanumeric and geographic criteria and the execution of
simple spatial analysis operations. Finally, overall results are
presented concerning the levels of use by users of the
functionalities of the developed platform, as well as some
considerations on system developments and improvements.