The LinuxClassLibrary is a growing set of classes which everyone needs every day, that runs on all types of *nix and also on Win32. Currently it is a library that works in the background (non GUI). Current features are character handling, file descriptors (sockets, file, etc.), a database system (like the Perl DBI), an event system, template collection classes (set, heap, hash, etc.), IPC, protocols, plug-ins, and images.
openSCADA is a Supervisory Control And Data Acquisition System. It is platform independent and based on a modern system design that provides security and flexibility at the same time. It is flexible. It is not an out of the box solution, but a set of tools that can be combined in many different ways. It provides development libraries, interface applications, mass configuration tools, and front-end and back-end applications. It is used 24/7 in several installations around this world. Support is available from IBH SYSTEMS GmbH.
Project Utgard is a sub-project of the openSCADA project. It's focused on creating a completely Java and open source OPC interface for the openSCADA project. In order to create clean interfaces between both worlds, a separate project was created which only covers OPC specific functionality which can also be used outside openSCADA to create OPC software.