The CEN-CENELEC-ETSI-ANSI conference on interoperability will provide a lively and outstanding forum where all stakeholders can discuss and exchange views on this key element in standardization, and can review the state of the art on standardised solutions to interoperability problems. This conference aims at enhancing awareness of the need for standardization activities addressing interoperability. It will give the opportunity to all interested parties involved in interoperability and standardization activities to present their activities, compare and contrast different solutions, and identify future needs and possibilities in collaboration with others.