VISA was originally standardized through the VXIplug&play Alliance, a now-defunct T&M standards body. The current standard, "VISA Specification 5.0", is maintained by the IVI Foundation.
"VISA Specification". IVI Foundation. http://www.ivifoundation.org/specifications/default.aspx ↩
"IVI-6.1: High-Speed LAN Instrument Protocol (HiSLIP)" (PDF). IVI Foundation. http://www.ivifoundation.org/downloads/Class%20Specifications/IVI-6.1_HiSLIP-2010-06-08.pdf ↩
"VXI-11 Bus Specification". VXI Bus Consortium. http://www.vxibus.org/?q=node/206 ↩
"USB Test & Measurement Class Specification". USB Implementers Forum Inc. Archived from the original on 2010-03-26. Retrieved 2010-04-30. https://web.archive.org/web/20100326005605/http://www.usb.org/developers/devclass_docs/ ↩