Overview
ISO/IEC 10165-4:1992/Amd 2:1998 is an amendment to the international standard focused on information technology within the Open Systems Interconnection (OSI) framework. It specifically addresses the structure of management information by providing enhanced guidelines for defining managed objects. This amendment introduces the NO-MODIFY syntax element and extends existing guidelines to clarify attribute management within OSI-based systems. It serves as a critical reference for professionals dealing with system and network management, particularly in environments applying OSI management protocols.
Key Topics
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NO-MODIFY Syntax Element:
This amendment adds the NO-MODIFY attribute to the managed objects model, explicitly indicating that certain attributes cannot be modified in subclasses or compatible classes of the managed object. This ensures immutability where required, enhancing data integrity and security in management information models.
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Extended Guidelines for Managed Objects:
Further clarifications and additions to object management directives help implementers and designers develop precise and consistent managed object definitions under the General Data Management Ontology (GDMO).
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Compatibility with ASN.1 (Abstract Syntax Notation One):
The amendment allows mixed use of ASN.1:1990 and ASN.1:1994 notations - two versions of ASN.1 - for normative syntax specification in management standards. It sets rules for interoperability and module equivalence, recommending automated machine conversion to minimize errors.
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GDMO Specification Conventions:
Additional conventions in GDMO assist in identifying specifications and usage choices linked to ASN.1 modules, ensuring clarity and consistency in management information definitions.
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Interoperability and Version Control:
The amendment emphasizes maintaining normative equivalence between modules written in different ASN.1 versions, supporting ongoing standards maintenance and evolution within ISO and ITU-T frameworks.
Applications
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Network and System Management:
Essential for designing management information bases (MIBs) in OSI environments, this amendment supports network administrators and system integrators in defining managed objects whose attributes need controlled modification rights.
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Protocol Development:
Developers of management protocols benefit from clear syntax and attribute constraints, facilitating the development of secure, interoperable network management applications.
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Standards Compliance and Implementation:
Organizations working with OSI management standards use this document to align their managed object definitions with international best practices, ensuring their systems comply with global interoperability and reliability requirements.
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Software Tools for ASN.1 Conversion:
This standard supports automated module conversion tools helping software developers maintain compliance across different ASN.1 specifications, reducing errors when transitioning or supporting mixed notation environments.
Related Standards
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ISO/IEC 8824-1:1995 (ASN.1:1994 Specification of Basic Notation): Defines enhanced ASN.1 notation used alongside this amendment.
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ISO/IEC 8824-2/3/4:1995: Cover ASN.1 informational objects, constraints, and parameterization relevant for managed object definitions.
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ISO/IEC 8825 Series: Specifies encoding rules (Basic Encoding Rules - BER, and Packed Encoding Rules - PER) for ASN.1 data structures as referenced in this context.
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ITU-T Recommendation X.680 to X.691 Series: The telecommunications equivalents of the ISO/IEC ASN.1 and ASN.1 encoding standards, closely linked with the OSI management framework.
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ISO/IEC 10165-1 to -5: The broader structure of management information standard family covering various aspects of OSI management, with Part 4 focused on managed object guidelines enhanced by this amendment.
Keywords: ISO/IEC 10165-4 amendment, NO-MODIFY syntax, OSI management, managed objects, ASN.1 compatibility, network management standards, General Data Management Ontology, GDMO guidelines, Open Systems Interconnection, ASN.1 conversion, system interoperability, network protocol standards.
Open preview (PDF)Information technology — Open Systems Interconnection — Structure of management information — Part 4: Guidelines for the definition of managed objects — Amendment 2: Addition of the NO-MODIFY syntax element and guideline extensions
