Suggested architecture relies on a client/server model. A subsystem that acts as a client that enables
access to geoinformation is a WebGIS portal, while the function of sharing (role of a server) is
realized by expanding traditional GISs with a WMS and a WFS Web interfaces (Web-enabled GIS).
Using of OGC WMS and WFS interfaces for building WebGIS systems can be also found in
(Korduan and Bill, 2004). Figure 1 illustrates interrelation between components that correspond to
subsystems.