Information technology - Open systems interconnection - Part 1: The Directory: Overview of concepts, models and services (Adopted ISO/IEC 9594-1:2020, ninth edition, 2020-11)
Edition 2021-07-01

Information technology - Open systems interconnection - Part 2: The Directory: Models (Adopted ISO/IEC 9594-2:2020, ninth edition, 2020-11)
Edition 2021-07-01

Amendment 1:2022 to CSA ISO/IEC 9594-2:21, Information technology - Open systems interconnection - Part 2: The Directory: Models - Amendment 1 (Adopted amendment 1:2021 to ISO/IEC 9594-2:2020)
Edition 2022

Information technology - Open systems interconnection - Part 3: The Directory: Abstract service definition (Adopted ISO/IEC 9594-3:2020, ninth edition, 2020-11)
Edition 2021-07-01

Information technology - Open systems interconnection - Part 4: The Directory: Procedures for distributed operation (Adopted ISO/IEC 9594-4:2020, ninth edition, 2020-11)
Edition 2021-07-01

Information technology - Open systems interconnection - Part 5: The Directory: Protocol specifications (Adopted ISO/IEC 9594-5:2020, ninth edition, 2020-11)
Edition 2021-07-01

Information technology - Open systems interconnection - Part 6: The Directory: Selected attribute types (Adopted ISO/IEC 9594-6:2020, ninth edition, 2020-11)
Edition 2021-07-01

Information technology - Open systems interconnection - Part 7: The Directory: Selected object classes (Adopted ISO/IEC 9594-7:2020, ninth edition, 2020-11)
Edition 2021-07-01

Information technology - Open systems interconnection - Part 8: The Directory: Public-key and attribute certificate frameworks (Adopted ISO/IEC 9594-8:2020, ninth edition, 2020-11)
Edition 2021-07-01

Information technology - Open systems interconnection - Part 9: The Directory: Replication (Adopted ISO/IEC 9594-9:2020, eighth edition, 2020-11)
Edition 2021-07-01