The Fieldbus Foundation and ARC are conducting a survey on process fieldbus selection criteria, installation, and challenges associated with the implementation and operational phase of the technology. The definition of fieldbus in this case includes purely digital bidirectional protocols such as FOUNDATION fieldbus and Profibus PA. While Fieldbus Foundation and ARC are interested in who is installing fieldbus and why, they also want to improve fieldbus technology and the user experience. The results of this survey will be used to improve fieldbus technology and services for the end user. All who respond to this survey will receive a consolidated copy of the results.