Interchangeability

Interchangeability of IVI class drivers depends on the fundamental interchangeability of the hardware that you are using. Your test system requirements still dictate your choice of particular instruments. For example, if your test system requires DMM measurements with 8½ digits of precision, you must use a DMM with 8½ digits of precision. You cannot replace an 8½ digit DMM with a 5½ digit DMM in your test system, unless you require only 5½ digits of precision, regardless of the software architecture. IVI class drivers implement a standard architecture for swapping instruments that are capable of taking the required measurements for your test system.