The construction of Local Area Network among ROKM Headquarters (DOD, Army, Navy and Air Force)
Lee, Tae Gong
Jeong, Jee Ho
La Patra, Jack W.
Sivasankaran, Taracad R.
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This thesis discusses the design issues and fundamental techniques of a Local Area Network ( LAN) , designs and chooses a LAN for the military. The three HQs and DoD of Korea operate their own computer center with no connection among them. All the exchange of data is performed manually and slowly. But, they want to rapidly and accurately exchange information among the fields of logistics, intelligence and operations. First, this thesis represents the overview of current system; how the system is organized, how it functions and what its existing facilities are. The thesis introduces the system objectives; the improvement of combat readiness and office automation. The overview and objectives of the system are utilized as a basis for system analysis. Through the system analysis phase, user's requirements are identified; information production, information transmission and information management. Based on user's requirements, LAN requirements are identified; software, informations transmitted on the network, security, reliability, interconnection and interfacing. Through requirement analysis, the evaluation criteria for a LAN design are produced and a model of system is explained by using Data Flow Diagram (DFD) and Data Dictionary (DD). Additionally, the thesis examines the issues for designing a LAN and goes on to select four fundamental technical ingredients. These are (1) access control method, (2) transmission media, (3) topology and (4) transmission techniques. Finally, the thesis selects and recommends a military LAN; a single-cable, midsplit broadband system.
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