Web ServicesWeb Services FunctionsExamples of Web Services:Slide 4Advantages of Web ServicesDisadvantages of Web ServicesDisadvantages Continued…Why Organizations Use Web Services:What Web Services Provide:Why Make Web Services Available:How Web Services Fits Into IS:Web Service ProvidersIBM:Slide 14SourcesWeb ServicesWeb ServicesAustin CarlsonAustin CarlsonKelly BrownKelly BrownZach TaylorZach TaylorWeb Services FunctionsWeb Services FunctionsAccording to the W3C, a Web service According to the W3C, a Web service is a software system designed to is a software system designed to support interoperable machine-to-support interoperable machine-to-machine interaction over a network. machine interaction over a network. Web services allow fast integration Web services allow fast integration for applications across multiple for applications across multiple platforms, including across platforms, including across businesses. businesses.Examples of Web Services:Examples of Web Services:Stock QuotesStock QuotesWeather ReportsWeather ReportsMonetary Exchange RatesMonetary Exchange RatesTranslation ProgramsTranslation Programswww.webservicex.comwww.webservicex.comAdvantages of Web ServicesAdvantages of Web ServicesWeb services use open standards and protocols. Web services use open standards and protocols. By utilizing HTTP, web services can work By utilizing HTTP, web services can work through many common firewall security through many common firewall security measures, where other forms might be blocked. measures, where other forms might be blocked. Web services can integrate software and Web services can integrate software and services from separate companies to create an services from separate companies to create an integrated service. integrated service. Allow the reuse of services and components Allow the reuse of services and components within an infrastructure. within an infrastructure. Loosely coupled for application integrationLoosely coupled for application integration. . www.wikipedia.orgDisadvantages of Web Disadvantages of Web ServicesServicesWeb services are just beginning Web services are just beginning compared to more developed compared to more developed computing standards such as CORBA. computing standards such as CORBA. –Temporary disadvantage since vendors Temporary disadvantage since vendors have committed to the OASIS standards have committed to the OASIS standards to implement the Quality of Service for to implement the Quality of Service for their products. their products. www.wikipedia.comDisadvantages Continued…Disadvantages Continued…Web services may suffer from poor Web services may suffer from poor performance compared to other performance compared to other distributed computing approaches like distributed computing approaches like RMI, CORBA, or DCOM. RMI, CORBA, or DCOM. Binary representations such as SOAPBinary representations such as SOAP–protocol for exchanging XML messages protocol for exchanging XML messages over a network, usually uses HTTPover a network, usually uses HTTPMTOM are to improve the wire MTOM are to improve the wire efficiency of XML messaging in the efficiency of XML messaging in the future. future. www.wikipedia.comWhy Organizations Use Web Services:Why Organizations Use Web Services:They don’t have to go out and research the They don’t have to go out and research the information, they can get it from other places.information, they can get it from other places.Cheaper! $$$$Cheaper! $$$$What Web Services Provide:What Web Services Provide:Up to date information.Up to date information.Ability to run business more efficiently.Ability to run business more efficiently.Why Make Web Services Available:Why Make Web Services Available:Make money!!!!Make money!!!!Ease of interaction.Ease of interaction.Standardization. Standardization.How Web Services Fits Into IS: How Web Services Fits Into IS: Gets the raw data out Gets the raw data out there and allows others there and allows others to do what they want to do what they want with it.with it.Web Service ProvidersWeb Service ProvidersAmazon.com - Search Products, Product Information, Cart System, Wish List eBay - Auction Search, Bidding, Auction Creation Google - In Beta - Web Search, Maps Yahoo! - Maps, Traffic FedEx - Tracking PayPal - Payment System Mappoint - Maps MSN - Virtual Earth BookBlog Flickr - Photo Interfax IBMLivejournal Blogger.com Xignite - Financial market data MusicBrainz - Music Metadata Fred Nurk - Fred Nurk IncIBM:IBM:IBM WebSphere Application Server Network Deployment Processor License + SW Maintenance 12 Months (D5ALTLL) Cost $15,000.00IBM:IBM:IBM WebSphere Application Server Express Processor License + SW Maintenance 12 Months (D520ELL) Cost $2,000.00CIBM WebSphere Application Server Express Intranet Option 20 Users License + SW Maintenance 12 Months (D522LLL) Cost
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