REVIEW FOR EXAM 3Information Systems For E-BusinessSlide 3Slide 4Components of E-BusinessE-Business ModelsB2C ModelsB2C Models (continued)Slide 9B2B ModelsC2C ModelsE-Government Business ModelsE-Business IssuesSecuritySlide 15Summary QuestionsInformation Systems For Decision-MakingThe Decision-Making ProcessIntelligence PhaseDesign PhaseChoice PhaseDecision Support SystemsModeling Tools and TechniquesGroups Decision Support SystemsExecutive Information SystemsSlide 26KWS. Expert SystemsExpert Systems ComponentsSlide 29Information Systems For Business IntegrationBusiness Integration?Systems for Horizontal IntegrationIntegrating Internal Processes with ERPVertical Integration with suppliersSystems for Vertical IntegrationElectronic Data Interchange (EDI)Slide 37Supply Chain Management (SCM)Vertical Integration with customersSlide 40CRM softwareSlide 42Information Systems For Strategic AdvantageValue Chain?Slide 45Slide 46Porter’s Value Chain Analysis toolPorter’s Competitive Forces Model: Dealing with external factorsPorter’s Competitive Forces ModelSlide 50Managing the Development and Purchase of ISTraditional Systems Development Life Cycle (SDLC)SDLC: RecapSlide 54PrototypingSlide 56Joint Application Development (JAD)Slide 58Slide 59Rapid Application Development (RAD)Slide 61Object-Oriented Analysis and Design (OOAD)Purchasing SoftwareRequest for Proposals (RFP)Slide 65Evaluating ProposalsSlide 671REVIEW FOR EXAM 3BUS3500 - Abdou Illia, Spring 20052Information Systems For E-BusinessPart 13What technologies would helpimplement your E-Business model?What technologies would take care of my concerns?What kind of issues/concernsyou have to deal with?Who are you? How far you can go digital?- What product/service?- How customers find, purchase, pay prod./serv.- How product/service are delivered?Who are your customers?E-BusinessTria n gle4E-Business TechnologiesWeb designTCP/IPJavaFirewallsElectronic Payments,Online BillingEncryptionE-Business IssuesCopyrightPrivacySecurityIntellectual PropertyTaxationTrustJurisdictionE-Business modelsB2BB2CC2CE-Gvt: G2B, G2CE-BusinessTrian gle5Components of E-BusinessEach component could be Physical or Digital.The extent to which a Business is an e-Business depends on the extent to which the components are digital.Processes: Process of finding the product, purchasing and paying.6E-Business ModelsBusiness-to-Consumer – B2CBusiness sells product directly to the consumer.Business-to-Business – B2BBusinesses sell to other businesses.Consumer-to-Consumer – C2CConsumers sell directly to other consumers.7B2C ModelsSubscription Consumers pay to have regular access to site.Consumersreports.comOnline storefrontWeb site acts as intermediary between manufacturer and consumer.Amazon.com8B2C Models (continued)Bricks-and-clicksCombines a traditional retail outlet with an online storefrontCircuitCity.comAdvertisingSell advertising space on web site to other companiesSports.yahoo.com9B2C Models (continued)Internet presenceUse web presence to provide information about products and servicesExxon.comIntermediaryNew types of intermediaries connect buyers and sellersE-Trade.com10B2B ModelsB2B is much larger than B2CSize estimates range from $543 Billion to $6.8 TrillionIncrease 50% per yearInformation exchangesExchange business documents over the InternetEDI via the InternetDirect sellersDirect sales model, direct to other businessesDell Premier pagesCiscoNew intermediariesVirtual hubs match buyers and sellersE-Hospitality11C2C ModelsOnline garage salesOnline auctionsAllows consumers to buy and sell goods with other consumersEBay.comC2C servicesSell expertise directly to other customersKeen.comOnline communitiesAllow people with similar interests to come togetherChat roomsDiscussion boards12E-Government Business ModelsGovernment-to-citizen (G2C)Provide government services to citizens over the InternetVehicle registration renewalOnline votingGovernment-to-business (G2B)Helps government and business work together more efficientlyReduces paperwork and costs for business and government13E-Business IssuesE-Business raises a number of difficult legal, social, and ethical issuesProtection of intellectual propertyTaxation of e-business transactionsJurisdiction – whose laws apply when a transaction crosses many international boundariesTrustTRUSTe14SecurityHackers: who attempts to gain unauthorized access to a computer systemSpoofing (spoof attacks)Denial of service attacksDistributed denial of service attacksPing of Death attacks1516Summary QuestionsMalaga Notes1) What are the three elements of the e-business triangle? 2) (a) Which business model do online auction sites use? (b) Which ones governments use?3) (a) What is a Denial of service attack? What is a spoof attack? What is a Ping of Death attack?4) Do Encryption protect the data stored on a server computer?17Information Systems For Decision-MakingPart 218The Decision-Making ProcessSimon’s model of the decision-making processIntelligenceDesignChoice19Intelligence PhaseScan the environment for a problem.Determine if decision-maker can solve the problem.Within scope of influenceFully define the problem by gathering more information about the problem.Scan Environment forproblem to be solvedor decision to be madeData sourceMISProblem ?ENDProblem within scope of influence?NoYesENDNoGather more informationabout the problemInternal & External data20Design PhaseDevelop a model of the problem.Determine type of model.Verify model.Develop and analyze potential solutions.Develop a model ofproblem to be solvedVerify that the model is accurateDevelop potentialsolutions21Choice PhaseSelect the solution to implement.More detailed analysis of selected solutions might be needed.Verify initial conditions.Analyze proposed solution against real-world constraints.22Decision Support SystemsMajor componentsData management subsystemInternal and external data sourcesModel management subsystemTypically mathematical in natureUser interfaceHow the people interact with the DSSData visualization is the keyTextGraphsChartsUserInterfaceModel Management- Sensitivity Analysis- What-if Analysis- Simulation- Goal-seeking AnalysisData Management- Transactional Data-