Modular instruments are devices that are used for the configuration of automated T&M equipment. They deliver open-software-defined solutions that offer more flexibility to users in terms of customizing their measurements and interfaces according to their needs. T&M equipment is used for the design, development, verification, maintenance, and repair of various electronic and mechanical products. Some of the electronic products that use T&M equipment are cell phones, semiconductors, digital cameras, MP3 players, and solar inverters. Some of the mechanical products that use T&M equipment are turbines, automotive suspensions, and aircraft propulsion systems. Automated T&M equipment enhances the efficiency, reliability, and accuracy of electronic/mechanical products under focus.