ICS 35.100.70                         LITD 14

Reaffirmed 2023

NATIONAL FOREWORD

This Indian Standard (First Revision) which is identical with ISO/IEC 15954 : 1999 'Information technology - Open systems interconnection - Connection-mode protocol for the Application Service Object Association Control Service Element' issued by the International Organization for Standardization (ISO) and International Electrotechnical Commission (IEC) jointly was adopted by the Bureau of Indian Standards on recommendation of the Software and Systems Engineering Sectional Committee and approval of the Electronics and Information Technology Division Council.

This standard was first published in 1993 and was identical to ISO 8650 : 1988. ISO 8650 was further revised by ISO and replaced by ISO/IEC 15954 : 1999. The first revision of this standard has been undertaken to align it with the latest version of ISO/IEC 15954 : 1999.

The text of ISO/IEC Standard has been approved as suitable for publication as an Indian Standard without deviations. Certain conventions and terminologies are, however, not identical to those used in Indian Standards. Attention is particularly drawn to the following:

a) Wherever the words 'International Standard' appears referring to this standard, they should be read as 'Indian Standard'.

b) Comma (,) has been used as a decimal marker, while in Indian Standards, the current practice is to use a point (.) as the decimal marker.