DS CWA 16008-3:2009 J/Extensions For Financial Services (J/Xfs) For The Java Platform - Release 2009 - Part 3: Magnetic Stripe And Chip Card Device Class Interface - Programmer's Reference Specifies the Magnetic Stripe Device (MSD) as well as Chip Card Device (CCD) classes based on the basic architecture of J/XFS which is similar to the JavaPOS architecture.