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Item 7 Cloud Computing: some emerging issues for consumers Julian Thomas What is cloud computing? Cloud computing is a broad term that describes the shift from conventional desktop based computing and storage systems to services and data accessed through the Internet. The ‘cloud’ is the network where applications, data and services are accessed online. Cloud computing services differ from cloud computing, in that they are essentially any service that can be “delivered and consumed over the internet in real-time”,[1] ‘cloud computing’ is the entire framework that enables these services to exist and be consumed. Cloud computing services are offered at three different levels: • Infrastructure as a service. A service that includes storage, servers and networks for IT use, with capacity that can be scaled up or down when required. • Platform as a service. Services that allow developers to create applications, regardless of the usual hardware and infrastructure problems that
hinder development. • Software as service. An application that exists within a web-based interface, with storage and interaction occurring entirely within the cloud. [2] The software service level is most likely to be used by consumers. Web-based email, calendars, photo and video storage, social networking sites, and applications offered by providers like Google are enormously popular. Emerging cloud applications include office productivity software, and even complex, specialist tools such as Photoshop. In the US, Healthvault and Google Health allow users to store and update their medical records online, which can be accessed by and shared with doctors, health professionals and family. Uptake and attractions According to a 2008 Pew study, around 69% of US internet users used some form of cloud computing, including webmail, the storage of videos, photos or other data online, backing up data to a server or using applications offered by a provider [3]. In Australia, cloud computing
services continue to grow in popularity. In 2009, the New South Wales Department of Education migrated 1.2 million students to Google Apps Users cite the reasons for using such services as ease of use, convenience, flexibility, and the ability to access data from anywhere. Many popular cloud services are also either free or low-cost, with business models built on targetted advertising or subscriptions, rather than the sale of a licence. Cloud computing represents an interesting centralising trend, taking users back in some ways to the pre-PC era of mainframes and terminals. But this centralisation is a response to very recent developments: the multiplication and proliferation of computing devices in households, schools, and workplaces, and the emergence of mobile devices. Many iPhone apps involve some kind of cloud computing We can summarise the attractions of cloud computing services as follows: • First, because the cloud is online, data is accessible anywhere, as long as sufficient
Internet bandwidth is available. For most applications, a basic DSL or 3G connection is enough. • Second, most cloud services work on a wide variety of platforms and devices, and most do not require computationally very powerful devices to 1 • • ` undertake complex tasks. Third, cloud computing helps people deal with multiple devices, such as smart phones, and computers at home and at school or work. Fourth, data managed in the cloud is inherently easier to share than something which lives on a desktop. Google Docs doesnt provide the same word processing features as Microsoft Word, but it makes much easier for people to work together on a document. Issues for consumers While cloud computing can save time, money and effort, the nature of cloud computing applications, as well as their dependence on broadband internet pose some serious issues for consumers. • Firstly and probably most significant is the issue of privacy. Much of the appeal of cloud computing lies in its
high level of scalability. Information stored in the cloud is ‘looked after’ by the provider, meaning that consumers share control over their information with the provider. [6] This creates a range of privacy and security issues, as well as legal concerns as to who owns and has access to the information. The recent controversy over the launch of the Google Buzz service illustrates some of the issues. • Second, there is the question of how users information may be used by service providers or third parties. Because cloud computing services offer effectively unlimited storage space, it becomes unnecessary to ever delete information or content that the consumer has added. This is turn creates enormous amounts of lucrative data that can be sold depending on the ownership of the information, which poses another issue to consumers. Even when information, such as an email, is deleted, it often still exists somewhere, with many organisations retaining content. In 2009, Facebook changed
its Terms of Service, suggesting that all original content is owned by Facebook, even if the user deletes their account. [7]When you include information that involves medical and financial records, calendars as well as other potentially sensitive information, the questions of who owns that data (both once it is current and once the user has deleted it), and who is entitled to use it, becomes all the more important. • Third, there are issues of accountability for how the data is managed. If the cloud fails, can the user access their information from somewhere else? Or if they decide to ‘move clouds’ for example, migrate from Google to Yahoo can their data be transferred? By relying on cloud computing, the user is entrusting all of their information to a service provider. If the cloud fails, who is responsible for recovering that lost information, and for any costs or damages incurred by that loss? Storing information somewhere out of the user’s control requires confidence that
the provider will be accountable for the protection of that data. • Fourth, the issue of mobility between clouds raises the more fundamental issue of connectivity between them. Clouds function in ways that recall in some respects the closed, proprietary networks of the 1980s and 90s, such as Compuserve or AOL. The tremendous benefit of the Internet as it emerged in the 1990s was the capacity for users to communicate across networks, but we may now be losing some of that freedom. Some experts have suggested that the next major challenge for Internet architects will be ensuring that clouds communicate with each other. Questions for discussion (1) What regulation needs to exist to ensure Cloud computing balances consumers needs for privacy with the ease of accessing information? (2) What safeguards should there be to enable migration from one cloud to another and ensure that data is not lost in the process? 2 [1]
Frank Gens, ‘Defining Cloud Services and Cloud Computing’, IDCExchange, 23rd September 2008, http://blogs.idccom/ie/?p=190, viewed 1st March 2010 [2] David Robbins, ‘Cloud Computing Explained’, PCWorld Business Centre, 15th May 2009, http://www.pcworldcom/businesscenter/article/164933/ cloud computing explained.html, viewed 2nd March 2010-03-02 [3] Pew Internet and American Life Project, in John Horrigan, ‘Use of Cloud Computing Applications and Services’, Pew Research Center, http://computinginthecloud.fileswordpresscom/2008/09/pip cloudmemopdf, viewed 2nd March 2010 [4] SpamTitan, ‘Cloud Computing Research Shows Flexibility a Factor is SaaS Adoption’, Marketwire, 3rd August http://www.marketwirecom/press-release/CloudComputing-Research-Shows-Flexibility-a-Factor-in-SaaSAdoption1025039htm2009, viewed 2nd March 2010 [6] Privacy Rights Clearinghouse, ‘The privacy implications of cloud computing’, Privacy Rights Clearinghouse website, March 2009, viewed 1st March
2010, http://www.privacyrightsorg/ar/cloud-computinghtm [7] Jonathan Bailey, ‘The Facebook TOS Controversy’, Plagiarism Today website, 17th February 2009, http://www.plagiarismtodaycom/2009/02/17/the-facebook-toscontroversy/, viewed 2nd March 2010 3