System V Interface Definition
E704366
The System V Interface Definition is a standardized specification that defines the application programming interfaces and behavior for UNIX System V–based operating systems to ensure compatibility and portability across different implementations.
All labels observed (5)
| Label | Occurrences |
|---|---|
| System V Interface Definition canonical | 2 |
| SUSv4 | 1 |
| UNIX programming interface | 1 |
| X/Open Portability Guide | 1 |
| X/Open UNIX specifications | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T7894686 — 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: System V Interface Definition Context triple: [UNIX System V, influenced, System V Interface Definition]
-
A.
System V derivatives
System V derivatives are a family of Unix operating systems that evolved from AT&T’s UNIX System V, shaping many commercial Unix variants and standards.
-
B.
ISO/IEC system interface standards
ISO/IEC system interface standards are internationally agreed technical specifications that define consistent interfaces between software, operating systems, and hardware to ensure portability and interoperability across computing platforms.
-
C.
UNIX System V
UNIX System V is a major commercial version of the Unix operating system, developed by AT&T and widely influential in defining standardized Unix features and interfaces.
-
D.
System V init
System V init is a traditional Unix initialization system that manages the startup and shutdown of services using runlevels and script-based configuration.
-
E.
System V IPC
System V IPC is a set of interprocess communication mechanisms in Unix-like operating systems, providing message queues, semaphores, and shared memory for processes to exchange data and synchronize.
- 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: System V Interface Definition Target entity description: The System V Interface Definition is a standardized specification that defines the application programming interfaces and behavior for UNIX System V–based operating systems to ensure compatibility and portability across different implementations.
-
A.
System V derivatives
System V derivatives are a family of Unix operating systems that evolved from AT&T’s UNIX System V, shaping many commercial Unix variants and standards.
-
B.
ISO/IEC system interface standards
ISO/IEC system interface standards are internationally agreed technical specifications that define consistent interfaces between software, operating systems, and hardware to ensure portability and interoperability across computing platforms.
-
C.
UNIX System V
UNIX System V is a major commercial version of the Unix operating system, developed by AT&T and widely influential in defining standardized Unix features and interfaces.
-
D.
System V init
System V init is a traditional Unix initialization system that manages the startup and shutdown of services using runlevels and script-based configuration.
-
E.
System V IPC
System V IPC is a set of interprocess communication mechanisms in Unix-like operating systems, providing message queues, semaphores, and shared memory for processes to exchange data and synchronize.
- F. None of above. chosen
Statements (45)
| Predicate | Object |
|---|---|
| instanceOf |
UNIX standard
ⓘ
application programming interface specification ⓘ technical standard ⓘ |
| abbreviation | SVID ⓘ |
| appliesTo |
System V Release 3
ⓘ
linked to:
UNIX System V
System V Release 4 ⓘ
linked to:
UNIX System V
UNIX System V–based operating systems ⓘ |
| category |
UNIX programming interface
ⓘ
linked to:
System V Interface Definition
software interoperability standard ⓘ |
| defines |
C language binding for UNIX System V APIs
ⓘ
application programming interfaces for UNIX System V ⓘ behavior of UNIX System V–based operating systems ⓘ binary interface conventions for UNIX System V ⓘ error handling conventions for UNIX System V APIs ⓘ file system interfaces for UNIX System V ⓘ header file requirements for UNIX System V ⓘ library function interfaces for UNIX System V ⓘ networking interfaces for UNIX System V ⓘ process control interfaces for UNIX System V ⓘ signal handling behavior for UNIX System V ⓘ system call interfaces for UNIX System V ⓘ terminal interface behavior for UNIX System V ⓘ |
| developedBy |
AT&T Bell Laboratories
ⓘ
linked to:
Bell Telephone Laboratories
|
| domain |
UNIX software development
ⓘ
operating systems ⓘ system programming ⓘ |
| ensures |
interface consistency across UNIX System V vendors
ⓘ
source code portability ⓘ |
| format |
printed specification
ⓘ
technical documentation ⓘ |
| influenced | later UNIX standardization efforts ⓘ |
| language | English ⓘ |
| purpose |
to ensure compatibility across UNIX System V implementations
ⓘ
to promote portability of applications between UNIX System V systems ⓘ to provide a common programming interface for UNIX System V vendors ⓘ |
| relatedTo |
Application Binary Interface
ⓘ
POSIX ⓘ Single UNIX Specification ⓘ UNIX System V ⓘ |
| specifies |
conformance requirements for UNIX System V implementations
ⓘ
minimum required functionality for compliant UNIX System V systems ⓘ |
| standardizedBy | AT&T ⓘ |
| usedBy |
UNIX system vendors
ⓘ
application developers targeting UNIX System V ⓘ system programmers ⓘ |
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: System V Interface Definition Description of subject: The System V Interface Definition is a standardized specification that defines the application programming interfaces and behavior for UNIX System V–based operating systems to ensure compatibility and portability across different implementations.
Referenced by (6)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: System V Interface Definition
linked to: System V Interface Definition
linked to: System V Interface Definition
linked to: System V Interface Definition