ECT455/HCI513 E-Trade Site Designing.


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Original remote innovation was the mobile phone ... A remote office, where PCs, telephones and other office gear are all organized ...
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ECT455/HCI513 E-Commerce Web Site Engineering Lecture 9 Wireless Internet and M-Business

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Wireless Technology and Devices Wireless advancement First-era remote innovation was the PDA Second era remote innovation, which incorporates computerized PDAs, is presently being used overall Third era, or 3G innovation will empower remote gadgets to send and get information as much as seven times speedier than a standard 56K modem Wireless gadgets Personal computerized associates (PDAs), Palm OS Digital PDAs (WAP Phones) Two-way pagers (RIM Blackberry) MS Windows CE/Pocket PC

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Wireless System Topology Point-to-point topology Networked topology Limitation: can\'t get to the Web, send email or running remote applications

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Evolution of Wireless Technologies Analog Technology (AMPS) Voice just FDMA (recurrence division numerous entrance) Voice Low Data Rate (9.6-19.2 kbps) TDMA, CDMA, GSM 2.5G 100kpbs Voice High Speed Data (2-4 Mbps) W-CDMA, 1xRTT, GPRS, Edge, IMT2000

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Wireless Internet Access Code Division Multiple Access (CDMA) Each transmission is alloted a particular channel, giving the transmission the advantage of the whole transfer speed inside that channel and diminishing the likelihood that an association will be broken Able to allocate every transmission on the system an extraordinary code to guarantee security Global System for Mobile Communications ( GSM ) Uses Time Division Multiple Access (TDMA) which accepts various calls and appoints every call to an alternate time space on the same radio recurrence, e.g.. Short message administration (SMS)

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2.5G Wireless Systems A middle of the road venture in utilizing full bundle exchanging 3G frameworks Use circuit exchanging for voice and parcel exchanging for information; intended to work in 2G system range GPRS (general Packet Radio Services)— the 2.5G usage of Internet convention bundle exchanging on European GSM system.

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The 3G Wireless Systems Packet-exchanging system innovation for remote transmission of voice, information, pictures, sound, and video. rapid Internet access, email, gushing sound and video EDGE (AT&T, Nokia) Cdma2000 (Sprint PCS) W-CDMA (NTT DoCoMo) International Telecommunications Union (ITU) Establishes rules for 3G

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Packet Switching Circuit-changing systems need to hold assets (cradles and data transfer capacity) for the whole term of the correspondence session. Bundle exchanging offers better sharing of transfer speed; more straightforward, more effective, and less immoderate to actualize. In any case, not reasonable for continuous administrations due to its variable and flighty deferrals.

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Direct succession spread range connected in W-CDMA air interface.

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3G Wireless Systems High information rates, 2-5 Mbps for indoor utilize, 384 kbps for people on foot, and 144 kbps for vehicles Packet-exchanged systems, clients will be constantly associated Voice and information system will be progressively designated Enhanced wandering Common charging and have client profiles Use geographic position of the clients through versatile terminals and systems Suitable for transmission of interactive media and portable administrations

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Wireless Internet engineering utilizing star topology

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A system topology with different remote systems associated with the Internet

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M-Commerce: Introduction Wireless innovation transforms e-business into m-business , or portable business Current applications Conduct online exchanges Make buys Trade stocks Send email Future applications A remote office , where PCs, telephones and other office gear are all arranged without links

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Obstacles for m-Business Adoption Service is not all around accessible and still moderately costly Limited transfer speed confines the measure of information that can be sent over the remote system Wireless gadgets have altogether littler memory limit and less effective processors than desktop PCs Multiple benchmarks

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Content Compare to customary web Smaller screens Low data transfer capacity Monochrome versus Shading Character versus Bit modes Font control Limited neighborhood memory Limited information passage abilities Mini program highlights Phones versus PDAs versus new frame components

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m-Business m-Business e-Business utilizing remote gadgets with Internet access B2C commercial center Increased comforts for purchasers Frequent, little exchanges Receiving news, sports scores, email, coupons and notices B2B commercial center Salespeople can get to item databases and spot orders Address client needs quickly Ordering and charging will be directed remotely

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Wireless Web Technology Three advances are utilized to give Web access to remote gadgets Wireless Application Protocol (WAP) Palm OS - Web cutting Microsoft\'s Pocket Internet Explorer

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PDA and Web Clipping Web cutting Allows clients to take important bits of a Web website and convey it to a remote gadget, wiping out overabundance substance and illustrations Proxy server Lies between customer, (for example, a Web program) and Web server Query is gotten by an intermediary server controlled by the remote ISP Proxy server goes to the Web webpage and "clasps" the fundamental information The intermediary server transmits the information back to your remote gadget If the intermediary server does not have the data, it passes the solicitation to the standard server Query Application Builder ( QAB ) Web architects manufacture (PQAs) to be introduced on clients\' Palm handheld PCs

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WAP Wireless Application Protocol ( WAP ) Developed by Nokia, Ericsson, Motorola, and so forth. An arrangement of correspondence conventions intended to empower various types of remote gadgets to impart and get to the Internet Designed to institutionalize improvement crosswise over various remote advances overall Intended basically for Internet-empowered computerized telephones, pagers and other handheld gadgets Uses Web destinations particularly intended for remote handheld gadgets that have little screens and low-transmission capacity imperatives

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WML Wireless Markup Language (WML) The scripting dialect used to make Web substance to be conveyed to remote handheld gadgets, taking into account XML Removes "pointless" substance from Web pages WML labels are utilized to "stamp up" a Web page to indicate how the page ought to be organized on a remote gadget WML works with the WAP to convey the substance Similar to HTML, yet it doesn\'t require info gadgets Microbrowsers Designed with constrained data transmission and restricted memory necessities Access the Web by means of the remote Internet

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WAP and WML How remote Internet functions: A WAP portal, which goes about as an intermediary server, gets the solicitation, interprets it and sends it to the fitting Internet Server reacts by sending the asked for WML archive The WAP door parses this present record\'s WML (i.e., it examines the WML report, checking it for rightness) and sends the best possible content to the advanced telephone Deck A WML record Card Consists of one client collaboration, giving the WML program a little, independent record for perusing

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The WAP topology

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Software Appliances for Wireless Devices No broadly acknowledged standard for remote improvement Developers are regularly required to build up different applications Microsoft Pocket Internet Explorer Reformats complete Web pages as they are downloaded from the Internet for showcase on the Pocket PC Allows Pocket PC clients to get to the majority of the substance as of now accessible on the Web and takes out the need to tailor Web content for conveyance to handheld gadgets

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Wireless Local Area Networks Easier to introduce and keep up without disturbing an office or without installing another system association in every area Technologies Radio Frequency WLANs (RF WLANs): Used to network gadgets at a separation Laser innovation Infrared innovation Bluetooth Wi-Fi 802.11x

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Location Tracking Location following Can be utilized for route, for example, GPS (Global Positioning System) gadgets introduced in autos Can be utilized by transportation organizations to track conveyance trucks, giving clients more precise following data and expected conveyance time Can likewise be utilized for focused promoting

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Location-based Services 911 locator Government order Triangulate position from 3 towers Advertising Impulse purchasing, strolling past a store Discounts Mapping and Directions Weather conjectures

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Global Positioning System (GPS) Developed by the United States Department of Defense Uses satellites to track a client\'s position (vertical and flat), speed and the time in their area Six round circles (four satellites for every circle), five ground stations and three recieving wires Triangulation Three (of four) satellites are utilized to decide the scope, longitude and elevation of the collector, the fourth satellite is utilized to check for blunders in the triangulation

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The Carriers Rule! Rollout of remote Internet administrations relies on upon the bearers They possess the transmission capacity licenses Competing measures, esp. in the US Investment in framework Global and across the nation scope Auctions for new transfer speed Competition Cooperation Contrast the circumstances in Europe, Japan and the US.

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Value Proposition of m-Business

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Future of Wireless Internet Decreasing expense and size of remote telephones and cell phones Improving innovation Increasing number of gadgets made remote Increased investor enthusiasm for remote innovation

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Opportunities Short term (1-2 Yrs.) Short/Med. term (1-3 Yrs.) Med. /Long term (3-5 Yrs.) Remote diagnostics Entertainment-on-interest: Games, Audio & Video Internet empowered data, instruction & amusement Emergency Services Roadside Assistance Navigation related data Travel related data Interactive route information E-mail and information/msgs Information: news, sports,

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