Reaffirmed 2021

NATIONAL FOREWORD

This Indian Standard (Part 1) (First Revision) which is identical with ISO/IEC 7498-1 : 1994 ‘Information technology - Open Systems Interconnection - Basic Reference Model: The Basic Model’ issued by the International Organization for Standardization (ISO) and International Electrotechnical Commission (IEC) jointly was adopted by the Bureau of Indian Standards on the recommendations of the Software and System Engineering Sectional Committee and approval of the Electronics and Information Technology Division Council.

This standard is one of the parts of a series of standards on ‘Information technology - Open systems interconnection - Basic reference model’. The other parts in this series are:

Part 2 Security architecture

Part 3 Naming and addressing

Part 4 Management framework

This standard was first published in 1987 and was identical to ISO 7498 : 1984. This standard is now being revised to align it with the latest publication of ISO/IEC 7498-1.

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

a) Wherever the words ‘International Standard’ appear 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.