This standard defines a common methodology for modeling and simulating SCSI systems accurately and consistantly. It establishes the requirements for the exchange of perfomance information between components suppliers and system simulators. It defines the acceptable methods for extracting the electrical and perfomance attributes of the constituent parts of the SCSI parallel interface. It establishes a common methodolgy for simulating the SCSI physical environment. It is intended to be used in conjunction with the requirements within the SCSI Parallel Interface (SPI-x) family of standards.