CSA Preface Standards development within the Information Technology sector is harmonized with international standards development. Through the CSA Technical Committee on Information Technology (TCIT), Canadians serve as the Canadian Advisory Committee (CAC) on ISO/IEC Joint Technical Committee 1 on Information Technology (ISO/IEC JTC1) for the Standards Council of Canada (SCC), the ISO member body for Canada and sponsor of the Canadian National Committee of the IEC. Also, as a member of the International Telecommunication Union (ITU), Canada participates in the International Telegraph and Telephone Consultative Committee (ITU-T). This Standard has been formally approved, without modification, by these Committees and has been approved as a National Standard of Canada by the Standards Council of Canada. Scope This part of ISO/IEC 16500 covers the high and mid layer protocols for DAVIC systems. It defines a set of protocol components (\"tools\") which are referenced by ISO/IEC 16500-2 (\"System Dynamics, Scenarios, and Protocol Requirements\"). In particular this part of ISO/IEC 16500 describes the protocol stacks required for the support of the DAVIC flows, i.e., S1 through S5. The specific DAVIC options for each of the protocols are specified as well as the different optional protocols stacks applicable. Requirements on protocols at specific interfaces are also considered and included in the specification.