Bài giảng Business Driven Technology - Business plug-in B17 - Organizational Architecture Trends

BUSINESS PLUG-IN B17Organizational Architecture TrendsLEARNING OUTCOMESDescribe the business value in deploying a service oriented architectureExplain the need for interoperability and loose coupling in building today’s IT systemsLEARNING OUTCOMESIdentify the logical functions used in a virtualized environmentExplain the business benefits of grid computingARCHITECTURE TRENDSOrganizations today must continually watch new architecture trends to ensure they can keep up with new and disruptive technologiesThree architecture trends that are quickly becoming requirements for all businesses including:Service oriented architectureVirtualizationGrid computingSERVICE ORIENTED ARCHITECTUREService oriented architecture (SOA) is a business-driven IT architectural approach that supports integrating a business as linked, repeatable tasks or servicesSOA ensures IT systems can adapt quickly, easily, and economically to support rapidly changing business needsSERVICE ORIENTED ARCHITECTURESOA Business BenefitsThe key technical concepts of SOA are:ServicesInteroperabilityLoose coupling SOA Business BenefitsServiceService oriented architecture begins with a service (A SOA) service - can be a business task, such as checking a potential customer's credit rating only opening a new accountServices are “like” software productsServiceInteroperabilityInteroperability - is the capability of two or more computer systems to share data and resources, even though they are made by different manufacturersWeb service - contains a repertoire of Web-based data and procedural resources that use shared protocols and standards permitting different applications to share data and servicesExtensible Markup Language (XML) - a markup language for documents containing structured informationLoose CouplingLoose coupling - is the capability of services to be joined together on demand to create composite services, or disassembled just as easily into their functional componentsLoose coupling is a way of ensuring that the technical details are decoupled from the serviceVIRTUALIZATIONVirtualization - is a framework of dividing the resources of a computer into multiple execution environmentsIt is a way of increasing physical resources to maximize the investment in hardwareVIRTUALIZATIONWhat are Virtual Machines?System virtualization - is the ability to present the resources of a single computer as if it is a collection of separate computers ("virtual machines")Each with its own virtual CPUs, network interfaces, storage, and operating systemWhat are Virtual Machines?Virtualization Business BenefitsTrends that have moved virtualization into the spotlight:Hardware being underutilizedData centers running out of spaceIncreased energy costsSystem administration costs mountingAdditional Virtualization BenefitsRapid application deploymentDynamic load balancing Streamlined disaster recoveryGRID COMPUTINGGrid computing - is an aggregation of geographically dispersed computing, storage, and network resources, coordinated to deliver improved performance, higher quality of service, better utilization, and easier access to dataGRID COMPUTINGGrid Computing Business BenefitsImproving productivity and collaboration of virtual organizations and respective computing and data resourcesAllowing widely dispersed departments and businesses to create virtual organizations to share data and resourcesBuilding robust and infinitely flexible and resilient operational architecturesGrid Computing Business BenefitProviding instantaneous access to massive computing and data resourcesLeveraging existing capital investments, which in turn help to ensure optimal utilization and costs of computing capabilitiesGrid Computing Business BenefitsCLOSING CASE ONEThe US Open Supports SOAReview the five characteristics of infrastructure architecture and rank them in order of their potential impact on the USOpen.orgWhat are the USTA security concerns regarding interoperability between the tournament database and its website?How could the USTA benefit from virtualization?CLOSING CASE ONEThe US Open Supports SOAIdentify the value of integrating the tournaments information with the USTA website USOpen.org?Explain why a sudden surge in server utilization during the middle of the US Open could spell disaster for the USTAWhy is loose coupling a critical business component to the USTA architecture?CLOSING CASE TWOeBay’s GridReview the five characteristics of infrastructure architecture and rank them in order of their potential impact on eBay’s businessWhat are the business benefits that eBay enjoys thanks to grid computing?What precautions would eBay take to ensure 100 percent security?CLOSING CASE TWOeBay’s GridHow can eBay take advantage of implementing SOA?Explain how eBay uses fault toleranceDescribe the potential value of eBay using virtualizationWhat ethical and security concerns should eBay be aware of to ensure its business operates properly?