We are the world's largest and leading provider of design-to-test software solutions. Design and test teams of all sizes use our products to save time, cut costs, and dramatically decrease time to market.

Originally started in 1979, Test System Strategies Incorporated's (TSSI) founders and employees are true innovators in the design-to-test industry. One of our major contributions includes the invention of the Waveform Generation Language (WGL), the de-facto standard for DFT (design-for-test), ATPG (automatic test pattern generation) and tester interface.

TSSI has been through many name changes over the years.  Since March 2005, we have been 100% independent and re-established our original TSSI's name and mission to be a true neutral design-to-test software tool vendor.

We provide innovative products and premier services for converting functional and structural simulation data from EDA (electronic design automation) output formats to ATE (automatic test equipment) program files. Our revolutionary pattern validation technologies offer design and test teams time and cost savings in pre- and post-silicon test program verification, debugging, and failure analysis.