DIN EN ISO/IEC 7498-1:1995-12

1 Scope
2 Definitions
3 Notation
4 Introduction to Open Systems Interconnection (OSI)
    4.1 Definitions
    4.2 Open System Interconnection Environment
    4.3 Modelling the OSI Environment
5 Concepts of a layered architecture
    5.1 Introduction
    5.2 Principles of layering
    5.3 Communication between peer-entities
    5.4 Identifiers
    5.5 Properties of service access points
    5.6 Data units
    5.7 The nature of the (N) service
    5.8 Elements of layer operation
    5.9 Routing
    5.10 Quality Of Service (QOS)
6 Introduction to the specific OSI layers
    6.1 Specific layers
    6.2 The principles used to determine the seven
         layers in the Reference Model
    6.3 Layer descriptions
    6.4 Combinations of connection mode and connection-
         less mode
    6.5 Configurations of OSI Open Systems
7 Detailed description of the resulting OSI
    architecture
    7.1 Application Layer
    7.2 Presentation Layer
    7.3 Session Layer
    7.4 Transport Layer
    7.5 Network Layer
    7.6 Data Link Layer
    7.7 Physical Layer
8 Management aspects of OSI
    8.1 Definitions
    8.2 Introduction
    8.3 Categories of management activities
    8.4 Principles for positioning management function
9 Compliance and consistency and compliance
    requirements
    9.1 Definitions
    9.2 Application of consistency and compliance
         requirements
Annex A - Brief explanation of how the layers were
            chosen
Annex B - Alphabetical index to definitions

Provides a common basis for standards development for systems interconnection, while allowing existing standards to drawn into perspective within the overall Reference Model.