CONTENTS

 1     Scope
 2     References
 3     Definitions
 4     Abbreviations
        4.1     X.290-Series Recommendations abbreviations
        4.2     Recommendation X.724 abbreviations
 5     Compliance
 6     Overview
        6.1     Introduction to System Conformance Statements (SCSs)
        6.2     Introduction to Implementation Conformance Statements (ICSs)
        6.3     ICS proformas
                  6.3.1     General
                  6.3.2     PICS proformas
                  6.3.3     Information object ICS proformas
                  6.3.4     Profile specific ICS proformas
        6.4     Profile Requirements Lists
        6.5     Relationships between OSI specifications and their related ICS proformas and ICSs
                  6.5.1     The general picture
                  6.5.2     Base specifications
                  6.5.3     Profile specifications
                  6.5.4     Profile ICS proformas
                  6.5.5     Profile ICS
                  6.5.6     Profile specific information
        6.6     SCS proformas
        6.7     Use and users of ICSs and SCSs
                  6.7.1     Users of proformas
                  6.7.2     Uses of ICSs and SCSs
 7     Structure of an SCS proforma
 8     Layout of an ICS proforma specification and profile RL
        8.1     Introduction
        8.2     Requirements for ICS proforma specifications and specifications of ICS templates
                  8.2.1     Publication options for ICS proforma specifications
                  8.2.2     The Introduction clause
                  8.2.3     The Scope clause
                  8.2.4     The References clause
                  8.2.5     The Definitions clause
                  8.2.6     The conformance clause
                  8.2.7     Copyright
        8.3     The ICS proforma
                  8.3.1     Introduction
                  8.3.2     First section – Identification of the ICS proforma corrigenda
                  8.3.3     Second section – Instructions
                  8.3.4     Third section – Identification of the implementation
                  8.3.5     Fourth section – Identification of the protocol, information object or profile
                  8.3.6     Fifth section – Identification of corrigenda to the protocol, information object or profile       19
                  8.3.7     Sixth section – ICS proforma tables
        8.4     Re-issuing ICS proformas following technical corrigenda
        8.5     PICS proformas
                  8.5.1     Introduction
                  8.5.2     Roles
                  8.5.3     Major capabilities
                  8.5.4     PDUs
                  8.5.5     PDU parameters
                  8.5.6     Timers
                  8.5.7     Negotiation capabilities
                  8.5.8     Protocol error handling
                  8.5.9     Multi-specification dependencies
                 8.5.10     Other conditions
        8.6     Information object ICS proformas
        8.7     Profile RL and profile specific ICS proforma
                  8.7.1     Introduction
                  8.7.2     Use of base specification ICS proformas in a profile
                  8.7.3     Profile RL
                  8.7.4     Profile specific ICS proforma
                  8.7.5     Asymmetry in profile static conformance requirements
 9     Complete specification of ICS proforma and RL notation
        9.1     Introduction
        9.2     Status column values
                  9.2.1     General notations
                  9.2.2     Predicates
                  9.2.3     Logical negation symbol
                  9.2.4     Flagging of references used in predicates
                  9.2.5     Notation for conditional requirements
        9.3     Support column answers
                  9.3.1     General notations
                  9.3.2     Conditional support answers
                  9.3.3     Tick boxes for support answers
                  9.3.4     Omission of irrelevant tick boxes
        9.4     Column headings
        9.5     Referencing items and their support answers
        9.6     Specific requirements for profile RL notation
10     Relation of the ICS and IXIT
Appendix I – Guidance on the meaning of ICS status values and support answers
Appendix II – Use of profile RL and profile specific ICS
Appendix III – Examples of PICS proforma tables and related profile Requirements List tables
Appendix IV – Guidance for interpretation of additional status notations
Appendix V – Guidance on IXIT proformas
Appendix VI – Information objects
Appendix VII – Guidance on multi-specification dependencies
Appendix VIII – Guidance on status and support for parameters on received PDUs
Appendix IX – Guidance on the ICS templates and ICS proformas used in OSI management