At both levels, V has proven to be a very effective tool. Because of its design, it is amazingly easy to learn to use. For the first time, our students have been able to easily develop GUI programs that work on the University's X Windows systems, or often on the students own Linux systems. The code is commercial quality, and extensively documented. It provides not only a good case study of an object-oriented design, it provides excellent examples of the low level interface to the native GUI tool kits for X Windows and Microsoft Windows.
V is also an excellent tool for developing many custom applications.
It is a suitable tool for research labs, small custom software shops, engineering firms, or individuals that need to develop an application that needs a graphical user interface, especially for multiple platforms. Because of its design, V is far easier to learn and use than the native GUI tool kits. Since it is freeware, licensed under the GNU Library General Public License, it will always be available with its source code for public use. There is a 150 page indexed reference manual included. The manual is provided in PostScript and HTML versions.