Windows, 7, or a later version.
Microsoft Visio, 2010 or a later version. Microsoft Office 2007 with Excel, or a later version. Is recommended but not necessary! Adobe Reader
The most appropriate version of Microsoft Visio is the professional version, although the cheapest (standard) version is also suitable. Visio is offered in a wide price range on the internet
To use the DCD program on a MAC, you must first install Windows. With MAC support, you can find out how to do that.