System Development Life Cycle

2007 DevelopmentIn both one-server or ii-server access , the cyberspace configuration muddied dog employ either radio (cable ) or radio receiver as media transmission However , considering the vast position of semipolitical relation offices that argon going to be have-to doe withed , in this , we suggest the call of radio receiver ne bothrk . The reason is radio receiver network either GSM (global systems for mobile chats ) or CDMA (code class multiple ingress technologies are currently available wide throughout the U .S , which provide by carrier exchangeable Verizon and Sprint MobileFor one-server network , we place the server in the mid-western affirm The smirch suggests that a service provider , a provideeration that carries out telecommunication service in the U .S , go away deliver selective cultivation tran smission (radio receiver access ) from contrary location into the server in mid-western . In the server location , we will place an experienced technicians and over-seen by government-employed economistsThe role of wireless access , called wireless VPN (virtual unavowed network ) is beneficial for the earth government since it is the most constitute effective start since the dissipate is based on the enumerate of sent and received information instead of fixed periodic charge . In entree , the use of wireless VPN is similarly easy to install and do not require forward-looking equipments at remote locations . In the remote location , we unspoiled need a wireless modem for either GSM /CDMA technologyIn the two-server mode , the situation is somewhat similar to one-server approach . The difference is in that location is a leased suck up associate between two servers in to synchronize selective information that placed in the two servers . The get of using this approach is the load of server is reduced importantly! since it is shared into two servers .

However , two-server approach may bespeak additional cost as the results of additional leased line service that link two server in two locationsIn general , there are many benefits of using wireless VPN access in the development of one-server of two-server approach in the government state proposed communication network as followingFlexibleLow operation and guardianship costsNationwide cover senesceEnd-to-end transmissionAvailability of NMS (network Monitoring SystemSecure (L2TP /GRE /IP Sec Tunneling , 3DES ,MD5Integrated InfrastructureImplementationFigure 1 A poseur of One-Server Approach with GSM /CDMA entrance In the figure , we assume the use o f both GSM and CDMA networks collectable to the vast location of state governments offices to be connected . In the carrier s office , there should be DXC (digital cross connect ) to integrate information sent from GSM and CDMA networks . IN the customer legion (state government offices , there should be a server that fed any locations in the state .ReferencesBitpipe (2006a . lucre Design and precaution First Steps . Retrieved June 15 , 2007 from HYPERLINK hypertext transfer protocol / web .bitpipe .com /data /web /bp /netmgmt /netmgmt_tutorial .jsp hypertext transfer protocol / web .bitpipe .com /data /web /bp /netmgmt /netmgmt_tutorial .jsp--- (2006b . Network Design and Management Overview . Retrieved June 15 2007 from http /www .bitpipe .com /data /web /bp /netmgmt /netmgmt_overview .jspDennis , A (2002 . Networking in the lucre age . John Wiley Sons New...If you want to get a all-embracing essay, effect it on our website: OrderEssay .net

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