sentences:  The rationale for NeSSI originated from focus group meetings held in 1999 at the Center for Process Analytical Chemistry (CPAC) which called out for more reliable sampling and analysis for the manufacturing processes.Early work with NeSSI was started in July, 2000 by Peter van Vuuren (ExxonMobil Chemical) and Rob Dubois (Dow Chemical) with the initial aim of adopting new types of modular and miniature hardware which were being addressed in a standard being developed by an ISA (Instrumentation, Systems and Automation Society) technical committee.