IEEE P1281
E505226
IEEE P1281 is an IEEE standard that formalizes the Rock Ridge extensions, which enhance ISO 9660 CD-ROM file systems with Unix-style features like long filenames, deeper directory hierarchies, and POSIX file attributes.
All labels observed (1)
| Label | Occurrences |
|---|---|
| IEEE P1281 canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5240728 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: IEEE P1281 Context triple: [Rock Ridge, standardizedAs, IEEE P1281]
-
A.
IEEE 1532
IEEE 1532 is an extension of the JTAG boundary-scan standard that defines in-system programming and configuration procedures for programmable devices such as FPGAs and CPLDs.
-
B.
ISO/IEC 23272
ISO/IEC 23272 is an international standard in the joint ISO/IEC series that specifies technical requirements and guidelines in the field of information and communication technologies.
-
C.
IEEE Std 610.12-2010
IEEE Std 610.12-2010 is an updated IEEE standard that provides a formal glossary of terms and definitions used in software engineering.
-
D.
IEC 62591
IEC 62591 is an international standard that defines the WirelessHART industrial wireless communication protocol for process automation and control applications.
-
E.
ISO/IEC 23270
ISO/IEC 23270 is the international standard that formally defines the C# programming language specification.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: IEEE P1281 Target entity description: IEEE P1281 is an IEEE standard that formalizes the Rock Ridge extensions, which enhance ISO 9660 CD-ROM file systems with Unix-style features like long filenames, deeper directory hierarchies, and POSIX file attributes.
-
A.
IEEE 1532
IEEE 1532 is an extension of the JTAG boundary-scan standard that defines in-system programming and configuration procedures for programmable devices such as FPGAs and CPLDs.
-
B.
ISO/IEC 23272
ISO/IEC 23272 is an international standard in the joint ISO/IEC series that specifies technical requirements and guidelines in the field of information and communication technologies.
-
C.
IEEE Std 610.12-2010
IEEE Std 610.12-2010 is an updated IEEE standard that provides a formal glossary of terms and definitions used in software engineering.
-
D.
IEC 62591
IEC 62591 is an international standard that defines the WirelessHART industrial wireless communication protocol for process automation and control applications.
-
E.
ISO/IEC 23270
ISO/IEC 23270 is the international standard that formally defines the C# programming language specification.
- F. None of above. chosen
Statements (30)
| Predicate | Object |
|---|---|
| instanceOf |
IEEE standard
ⓘ
optical disc file system standard ⓘ |
| abbreviation | P1281 ⓘ |
| appliesTo |
CD-ROM file systems
ⓘ
ISO 9660 file system ⓘ |
| dataModel | additional System Use fields in ISO 9660 directories ⓘ |
| defines | Unix-style extensions for ISO 9660 ⓘ |
| domain |
file systems
ⓘ
optical storage ⓘ |
| enhances | ISO 9660 NERFINISHED ⓘ |
| extends |
ISO 9660 directory structure
ⓘ
ISO 9660 file naming rules ⓘ |
| maintainsCompatibilityWith | standard ISO 9660 readers ⓘ |
| organization | Institute of Electrical and Electronics Engineers NERFINISHED ⓘ |
| purpose | to provide Unix-style semantics on ISO 9660 CD-ROMs ⓘ |
| relatedTo |
ISO 9660
NERFINISHED
ⓘ
POSIX NERFINISHED ⓘ Rock Ridge Interchange Protocol NERFINISHED ⓘ |
| scope | file and directory metadata on ISO 9660 volumes ⓘ |
| standardizes | Rock Ridge extensions NERFINISHED ⓘ |
| supportsFeature |
POSIX file attributes
ⓘ
Unix file permissions ⓘ deep directory hierarchies ⓘ device nodes ⓘ extended file attributes ⓘ file ownership information ⓘ long filenames ⓘ symbolic links ⓘ |
| targetEnvironment |
POSIX-compliant systems
ⓘ
Unix-like operating systems ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: IEEE P1281 Description of subject: IEEE P1281 is an IEEE standard that formalizes the Rock Ridge extensions, which enhance ISO 9660 CD-ROM file systems with Unix-style features like long filenames, deeper directory hierarchies, and POSIX file attributes.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.