The Open Categorization System (OCS) is an open, community-driven effort to classify Internet domains by subject matter.
OCS treats the Internet as a library and domains as cataloged works. Rather than organizing websites by ownership, popularity, or search ranking, OCS organizes them according to the subjects they contain.
OCS uses a hierarchical three-part subject code:
AAA.BBB.CCC
Where:
| Level | Description |
|---|---|
| AAA | Primary Subject |
| BBB | Secondary Subject |
| CCC | Specialized Subject |
Example:
SOC.ANT.CUL
Expands to:
Social Sciences
└── Anthropology
└── Cultural Anthropology
Another example:
COM.NET.P2P
Expands to:
Computing
└── Networking
└── Peer-to-Peer Systems
OCS classifies domains by what they contain rather than who owns them.
For example:
Categorization codes are intended to be understandable without consulting large reference tables.
SOC.ANT.CUL
REL.ESO.TAR
COM.NET.P2P
No proprietary numbering systems.
No copyrighted decimal categorizations.
No licensing requirements.
The taxonomy is intended to remain publicly available and freely implementable.
New subjects may be added as knowledge evolves.
The system should accommodate:
Contributions are welcome.
Areas of interest include:
You may join the community here: https://www.reddit.com/r/OpenCatSystem/
OCS is currently under active development.
The taxonomy, governance model, and cataloging guidelines are evolving through community discussion and experimentation.
The Open Categorization System (OCS) is an open, community-driven effort to classify Internet domains by subject matter.
OCS treats the Internet as a library and domains as cataloged works. Rather than organizing websites by ownership, popularity, or search ranking, OCS organizes them according to the subjects they contain.
OCS uses a hierarchical three-part subject code:
AAA.BBB.CCC
Where:
| Level | Description |
|---|---|
| AAA | Primary Subject |
| BBB | Secondary Subject |
| CCC | Specialized Subject |
Example:
SOC.ANT.CUL
Expands to:
Social Sciences
└── Anthropology
└── Cultural Anthropology
Another example:
COM.NET.P2P
Expands to:
Computing
└── Networking
└── Peer-to-Peer Systems
OCS classifies domains by what they contain rather than who owns them.
For example:
Categorization codes are intended to be understandable without consulting large reference tables.
SOC.ANT.CUL
REL.ESO.TAR
COM.NET.P2P
No proprietary numbering systems.
No copyrighted decimal categorizations.
No licensing requirements.
The taxonomy is intended to remain publicly available and freely implementable.
New subjects may be added as knowledge evolves.
The system should accommodate:
Contributions are welcome.
Areas of interest include:
You may join the community here: https://www.reddit.com/r/OpenCatSystem/
OCS is currently under active development.
The taxonomy, governance model, and cataloging guidelines are evolving through community discussion and experimentation.