In the real world, it's not enough for a USB device or hub manufacturer to simply prove that it has correctly followed the USB specification. You can never be sure what revision level of platforms or subtle differences a device will have to contend with in the field. The bottom line is that you don't want to spend all of your time debugging other manufacturers' designs. But you do need to know what's out there in order to defend your own design against potential failures in the hands of real-world users.
NTS knows from our experience that compliance does not always guarantee compatibility with other products, and you want to make sure your product is compatible with various USB-compliant products on the market today. To address these issues, NTS has developed the NTS USB Golden Suite that goes beyond the standard USB-IF certification. It answers the questions regarding whose fault is it, how bad is it out there, will my product perform as expected, and will it be a success or a failure.
The NTS USB Golden Suite focuses on real-world testing of your USB product with a variety of platforms, peripherals and operating systems. The testing covers a variety of USB chipsets using up to 500 USB devices and peripherals, along with supporting operating systems including Apple Mac OS X (up to 10.7 Lion), Microsoft Windows 2000, Microsoft Windows XP, Microsoft Windows Vista, Microsoft Windows Server 2003, Microsoft Windows Server 2008, and Microsoft Windows 7 (Microsoft Windows 8 coming soon!). NTS's USB Golden Suite test procedures consist of up to seven (7) major coverage areas: Installation Testing; Device Functionality Testing; Interoperability Testing; Hot Detach/Reattach Functionality Testing; Power Management Functionality Testing; Software Interoperability Testing; and USB Cable Length Testing. Make sure your product is ready for the market before you release it!