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Information exchange orinformation sharing means that people or other entities pass information from one to another. This could be done electronically or through certain systems.[1] These are terms that can either refer to bidirectionalinformation transfer intelecommunications andcomputer science orcommunication seen from asystem-theoretic orinformation-theoretic point of view. As "information," in this context invariably refers to (electronic)data that encodes and represents[2] the information at hand, a broader treatment can be found underdata exchange.
Information exchange has a long history ininformation technology.[3] Traditional information sharing referred to one-to-one exchanges of data between a sender and receiver. Online information sharing gives useful data to businesses for future strategies based on online sharing.[4] Theseinformation exchanges are implemented via dozens of open and proprietaryprotocols, message, and file formats. Electronic data interchange (EDI) is a successful implementation of commercial data exchanges that began in the late 1970s and remains in use today.[5]
Some controversy comes when discussing regulations regarding information exchange.[6] Initiatives to standardize information sharing protocols include extensible markup language (XML), simple object access protocol (SOAP), and web services description language (WSDL).
From the point of view of a computer scientist, the four primary information sharingdesign patterns are sharing informationone-to-one,one-to-many,many-to-many, andmany-to-one. Technologies to meet all four of these design patterns are evolving and includeblogs,wikis,really simple syndication,tagging, andchat.
One example of United States government's attempt to implement one of these design patterns (one to one) is theNational Information Exchange Model (NIEM).[7][8] One-to-one exchange models fall short of supporting all of the required design patterns needed to fully implement data exploitation technology.
Advanced information sharing platforms providecontrolled vocabularies,data harmonization,data stewardship policies and guidelines, standards for uniform data as they relate toprivacy,security, anddata quality.
The terminformation sharing gained popularity as a result of the9/11 Commission Hearings and itsreport of theUnited States government's lack of response to information known about the plannedterrorist attack on theNew York CityWorld Trade Center prior to the event. The resulting commission report led to the enactment of several executive orders byPresident Bush that mandated agencies to implement policies to "share information" across organizational boundaries. In addition, an Information Sharing Environment Program Manager[9] (PM-ISE) was appointed, tasked to implement the provisions of theIntelligence Reform and Terrorism Prevention Act of 2004.[10] In making recommendation toward the creation of an "Information Sharing Environment" the 9/11 Commission based itself on the findings and recommendations made by theMarkle Task Force on National Security in the Information Age.[11]
After all, recombination enables co-operative evolution by allowing information exchange within a population.
