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The Open Source Information System (OSIS) is the former name of an American unclassified network serving the U.S. intelligence community with open source intelligence. Since mid-2006, the content of OSIS is now known as Intelink-U while the network portion is known as DNI-U. [1] [2]
The OSI reference model was a major advance in the standardisation of network concepts. It promoted the idea of a consistent model of protocol layers, defining interoperability between network devices and software. The concept of a seven-layer model was provided by the work of Charles Bachman at Honeywell Information Systems. [14]
OSIS was the name of an "unclassified network serving the intelligence community with open-source intelligence". Originally used to refer both to the network and to the content it provided, it has since been decoupled, with the content named "Intelink-U", while the network continues as DNI-U.
This article lists protocols, categorized by the nearest layer in the Open Systems Interconnection model.This list is not exclusive to only the OSI protocol family.Many of these protocols are originally based on the Internet Protocol Suite (TCP/IP) and other models and they often do not fit neatly into OSI layers.
Intelink logo. Intelink is a group of secure intranets used by the United States Intelligence Community.The first Intelink network was established in 1994 to take advantage of Internet technologies (though not connected to the public Internet) and services to promote intelligence dissemination and business workflow.
The World Basic Information Library (WBIL) is a joint United States Army and United States Navy program, which allows Reserve Component (RC) personnel of all United States Armed Forces branches to participate in contributing Open Source Intelligence information in accordance with tasking requirements from the United States Department of Defense (DoD) and the United States Intelligence ...
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An 8th layer has also been referenced to physical (real-world) controllers containing an external hardware device which interacts with an OSI model network. An example of this is ALI in Profibus. A network guru T-shirt from the 1980s shows Layer 8 as the "financial" layer, and Layer 9 as the "political" layer. [7] The design was credited to Evi ...