OSI - Open Systems Interconnection
The OSI standards are published by the International Telecommunication Union and provide commercial standards on which MMHS are built. The ITU maintains a full listing of the X Series.
A number of their Information Technology standards are applicable to Nexor.
| ASN.1: Abstract Syntax Notation One | X.680 | Specification of basic notation |
|---|---|---|
| X.681 | Information object specification | |
| X.690 | ASN.1 encoding rules: Specification of Basic Encoding Rules (BER), Canonical Encoding Rules (CER) and Distinguished Encoding Rules (DER) | |
| X.693 | ASN.1 encoding rules : XML Encoding Rules (XER) | |
| Security techniques | X.841 | Security information objects for access control |
| X.400: Message Handling Systems (MHS) | X.402 | Overall architecture |
| X.411 | Message Transfer System: Abstract Service Definition and Procedures | |
| X.413 | Message store - Abstract service definition (P7) | |
| X.420 | Interpersonal Messaging System (P2, P22) | |
| X.500: Open Systems Interconnection - The Directory | X.500 | Overview of concepts, models and services |
| X.501 | Models | |
| X.509 | Public-key and attribute certificate frameworks | |
| X.511 | Abstract service definition | |
| X.518 | Procedures for distributed operation | |
| X.519 | Protocol specifications | |
| X.520 | Selected attribute types | |
| X.521 | Selected object classes | |
| X.525 | Replication | |
| X.530 | Use of systems management for administration of the Directory | |
| There is also a website for the X.500 Directory standard: X500STANDARD.COM | ||