Cloud Computing – The Best Form of IT DeliveryDocument Transcript
SolutionsCloud Computing – The Best Form ofIT Delivery
Cloud Computing – The Best Form of IT DeliveryThe changing paradigm of software development is the result of the advent of cloud computing models andvirtualization. The new concepts and delivery models have made major inroads in the field of Software Development.These new models can help you solve some major problems which are faced mostly by small and mediumenterprises. Before this volatile economic downturn, businesses kept getting the work done in-house. Many did notprefer outsourcing their in- house due to factors like local employment, security of resources and delivery, proprietaryissues & mutual trust. Cloud Computing addresses many of these problems in different ways by providing full controlto companies over the entire set of resources that would be used in different projects.
Cloud computing involves computing with scalable and virtualized resources which are provided through service overthe Internet. Users need not know about it in technical terms to get control over the technology infrastructure.Cloud Computing OverviewThe concept has a combination of the followinglInfrastructure as a Service (IaaS)lPlatform as a Service (PaaS)lSoftware as a Service (SaaS)The seven elements of cloud computing includes:Cloud computing services include business applications which are deployed online and can be accessed from a webbrowser when the data is actually stored in particular large storage servers.As evident from the graph above, cloud computing drivers include the need to cut costs, lack of in- house skills,budget issues, and the need to improve business operations. Cloud computing delivers this and more, the cloud hasexpanded its horizons tremendously in multiple sectors.
In today’s situation, a part of computer hardware in some large companies is used for development purposes andsome parts for testing and staging. A huge amount of processing power is utilized and the expense involved isenormous. These expenses are particularly devoted for non-business critical requirements in major organizationswhere the core work is related to other domains.According to the ITIL study, only 15% of the respondents considered implementing a public or private cloudcomputing model:There are some complexities involved when companies make deals with IT vendors to outsource their in-housedevelopment/Testing work. In such scenarios, these companies have faced major issues/risks in the recent past:lLack of transparency in the transactions as well as the delivery of work from the vendorlManipulation of dedicated resourceslFailure in ROI even after a huge investmentlLack of control of infrastructure from the client’s perspectivelInefficient Application Integration & Build ManagementlFaulty Hardware Scalability & PerformanceThe above points have been major factors in some companies not willing to outsource IT development tasks tooffshore locations and companiesCurrent ScenarioThe Cloud architecture, which involves the merging of software systems to be used for online delivery comprises ofhardware and software, architected by a cloud specialist and a cloud integrator. Many multiple cloud components areinvolved in communicating with each other on multiple programming interfaces and web services are usually themost important intermediary.This concept resembles the UNIX philosophy of multiple programs doing a single task through universal interfaces.The level of complexity is controlled and kept manageable compared to most of the counterparts. The concept isextended to web browsers and also includes software applications that accesses cloud applications.Cloud Computing Architecture
Features and Advantages of Cloud ComputinglImprovement in agility as accessibility to technological information resources is rapid and cost-effectivelCapital expenditure is transformed into operational expenditurelIncrease in device and location independence due to access through web browserlFeature of Multi-tenancy for better sharing of resourceslImprovement in reliability and business continuitylIncredible security measures with centralization of dataUse in Distributed Development EnvironmentlCompanies can obtain cloud computing services through subscription based model or by paying upfront for theservices rendered.lThe model assists in group collaboration; one can launch new servers and decommission them as requiredlSoftware development projects are temporary mostly with definite period of execution wherein not manygovernance issues apply since sensitive corporate data is not involved anywhere.lCloud testing brings in new approaches and capabilities including the newly invented cloud-sourced testing.lMost issues related to distributed development is completed solved with the help of centralization of infrastructurelDelivers more flexibility in terms of OS, Database, Mail Servers & the like. This is to help in understanding theproduct compatibility subject to many different conditionsCloud Computing in the Mobile WorldCloud computing has brought in the trend in which resources are delivered to clients on an on-demand basis. Mobilecloud computing (MCC) revolves around the concept of cloud computing in which the user device is a mobile. Manytechniques and methods are available for mobile cloud computing. One can deal in general-purpose mobile cloudcomputing solutions and application-specific ones too. Various instances of mobile cloud computing are noticed inrecent months where mobile devices now serve as the cloud rather than being the client.There are two primary reasons why mobile cloud computing is set to become a disruptive force in the IT world. Thefirst is taking into account the number of cloud users and the ever-increasing reach: which is far more than thenumber of mobile users alone. The second reason involves the distribution of applications. Currently, mobileapplications are matched up with a carrier. But with mobile cloud computing applications, internet is the only mediumthrough which you can get access to the mobile application.