Vsystem is a set of software tools, including data display and historian, for configuring process control and SCADA systems. Known for its speed, cross-platform and customer support, Vsystem is the same product on several different computer platforms, which can be freely intermixed giving you choices between popular and secure platforms.The very best support means that developers answer the telephone. The Vsystem architecture is analogous to plug-in hardware where each component serves a defined function of the whole system, making development, testing and maintenance easier. In addition, the architecture allows the system, with the IO connection replaced by a software model, to also serve as a training system. Using playback, one can also review past data with a copy of the system. We support four families of operating system: Windows, Linux, Solaris and VMS and these can be mixed in an application.