CAN/CSA-ISO/IEC-10021-1-94 (R2004)

The international community has decided to make this standard available only in the English language version. It has been adopted as a National Standard of Canada on this basis. This National Standard of Canada is equivalent to International Standard ISO/IEC 10021-1:1990. 1 Scope This part of ISO/IEC 10021 defines the overall system and service of an MHS and serves as a general overview of MHS. Other aspects of Message Handling Systems and Services are defined in other parts of ISO/IEC 10021. The layout of parts of ISO/IEC 10021 defining the Message Handling System and Services is shown in Table 1. The technical aspects of MHS are defined in other parts of ISO/IEC 10021. The overall system architecture of MHS is defined in ISO/IEC 10021-2.