| Applications Insight |
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Movements in the Private Cloud
The promises of public cloud computing - pay as you go, infinite scale and outsourced administration - are compelling. However, for most enterprises, security, geography and risk mitigation concerns make private cloud platforms more desirable. Enterprise customers like the idea of on-demand provisioning, but are often unwilling to take the performance, security and risk drawbacks of moving applications to remote hardware that is not under their direct control.
DBTA E-Edition -
September 2010 Issue
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The Single Application Vendor Strategy
In biology, we are taught that survival favors diversity. Organisms that reproduce without variation die out during periods of rapid change, while organisms that show variation in feature tend to survive and adapt. Likewise, ecosystems consisting of relatively few homogenous species thrive only when conditions stay static. Does IT diversity create a competitive advantage in the business application ecosystem? Predictably, large vendors with vertically integrated stacks argue that mixing software components is a Bad Thing. These vendors claim that reducing the diversity in the application stack leads to better efficiency and maintainability.
DBTA E-Edition -
July 2010 Issue
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Virtualization Architectures Do Make a Difference
Although VMware continues to hold the majority share of the commercial virtualization market, other virtualization technologies are increasingly significant, though not necessarily as high profile. Operating system virtualization-sometimes called partial virtualization-allows an operating system such as Solaris to run multiple partitions, each of which appears to contain a distinct running instance of the same operating system. However, these technologies cannot be used to host different operating system versions, making them less appealing to enterprises seeking to consolidate workloads using virtualization.
DBTA E-Edition -
June 2010 Issue
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Power Efficiency: A New Application Design Goal
Until recently, IT professionals have been conditioned to regard response time, or throughput, as the ultimate measure of application performance. It's as though we were building automobiles and only concerned with faster cars and bigger trucks. Yet, just as the automotive industry has come under increasing pressure to develop more fuel-efficient vehicles, so has the IT industry been challenged to reduce the power drain associated with today's data centers.
DBTA E-Edition -
May 2010 Issue
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Microsoft PowerPivot Adds to Excel's BI capabilities
Spreadsheets, which have long been a disruptive force to enterprise IT, to some extent are the "killer" applications that helped drive the adoption of personal computers (PCs) in the enterprise. Spreadsheet products such as Lotus 1,2,3 - and early versions of Excel on the Mac - saw rapid adoption by business users. Inevitably, these users pushed the boundaries of the spreadsheet model, using spreadsheets as databases, and even to develop simple business applications. In the late 1980s, it was typical to see corporate IT rolling out massively expensive mainframe-based solutions, while departmental users got their real work done on spreadsheets running on cheap PCs.
DBTA E-Edition -
April 2010 Issue
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Web-Based Applications Gaining Ground
In 1995, Netscape founder Marc Andreessen famously claimed that applications of the future would run within a web browser, relegating the role of the operating system - Windows, in particular - to "a poorly debugged set of device drivers." Fifteen years later, we can see that although rich applications such as Microsoft Office are still dominant, the web browser has become a platform that can deliver almost any conceivable type of business or consumer application.
DBTA E-Edition -
February 2010 Issue
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Hadoop Sets its Sights on Enterprise Computing
Google's first "secret sauce" for web search was the innovative PageRank link analysis algorithm which successfully identifies the most relevant pages matching a search term. Google's superior search results were a huge factor in their early success. However, Google could never have achieved their current market dominance without an ability to reliably and quickly return those results. From the beginning, Google needed to handle volumes of data that exceeded the capabilities of existing commercial technologies. Instead, Google leveraged clusters of inexpensive commodity hardware, and created their own software frameworks to sift and index the data. Over time, these techniques evolved into the MapReduce algorithm. MapReduce allows data stored on a distributed file system - such as the Google File System (GFS) - to be processed in parallel by hundreds of thousands of inexpensive computers. Using MapReduce, Google is able to process more than a petabyte (one million GB) of new web data every hour.
DBTA E-Edition -
January 2010 Issue
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.NET 4.0 and the Future of Windows Programming
When a company like Microsoft talks about the future of computing, you can expect a fair bit of self-serving market positioning - public software companies need to be careful to sell a vision of the future that doesn't jeopardize today's revenue streams. But, when a company like Microsoft releases a new version of its fundamental development framework - .NET, in this case - you can see more clearly the company's technical vision for the future of computing.
DBTA E-Edition -
December 2009 Issue
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Electronic Device Provides a Good Reading Experience
There's an old but clever internet parody describing the "Built-in Orderly Organized Knowledge device (BOOK)." This device is described as a "revolutionary breakthrough in technology" that is compact and portable, never crashes and supports both sequential and indexed information access. Though satirical, the article makes excellent points: the printed book is indeed an information technology device, arguably the oldest in widespread use today
DBTA E-Edition -
November 2009 Issue
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Augmented Realities Show Real Promise
The idea of "virtual" reality—immersive computer simulations almost indistinguishable from reality—has been a mainstay of modern "cyberpunk" science fiction since the early 1980s, popularized in movies such as The Thirteenth Floor and The Matrix. Typically, a virtual reality environment produces computer simulated sensory inputs which include at least sight and sound, and, perhaps, touch, taste and smell. These inputs are presented to the user through goggles, earphones and gloves or—in the true cyberpunk sci-fi—via direct brain interfaces.
DBTA E-Edition -
October 2009 Issue
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Experiments in Web Search Performance
Attendees at the O'Reilly Velocity conference in June were treated to the unusual phenomenon of a joint presentation by Google and Microsoft. The presentation outlined the results of studies by the two companies on the effects of search response time. Aside from the novelty of Microsoft-Google cooperation, the presentation was notable both in terms of its conclusions and its methodology.
DBTA E-Edition -
August 2009 Issue
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Crystal Ball-Gazing With Predictive Analytics
Predictive Analytics - sometimes referred to as Predictive Data Mining - is a branch of Business Intelligence that attempts to use historical data to make predictions about future events. At its simplest, predictive analytics utilizes statistical techniques, such as correlation and regression, which many of us have encountered in college or even high school. Correlation analysis determines if there is a statistically significant relationship between two variables. For instance, height and age are highly correlated, while IQ and height are very weakly correlated. Regression attempts to find an equation between the two or more variables, so that you can predict one from the other.
DBTA E-Edition -
July 2009 Issue
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VMware’s Private Cloud
Virtualization has changed the IT landscape more dramatically than perhaps any other technology introduced over the past decade. Virtualized environments are omnipresent in the modern data center due to their economic advantages in hardware consolidation and manageability.
DBTA E-Edition -
June 2009 Issue
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Open Source in the Cloud
Both open source software ( OSS) and cloud computing continue to experience strong interest and growth despite the economic downturn. Clearly, both provide the promise of reduced operating and software licensing costs. For instance, corporations looking to reduce the cost incurred by Microsoft Office licensing are looking more closely at the open source OpenOffice alternative, or at Google's online application suite, Google Apps. There's understandable resistance to moving from the rich experience offered by Microsoft to these lower-cost alternatives, but resistance has a way of disappearing in the face of financial imperatives.
DBTA E-Edition -
May 2009 Issue
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Spreadmarts Bridge the Gap Between Corporate BI and End Users
The business intelligence (BI) market is big: at least $10 billion in 2008 and much more if you include data warehousing projects. The tough economic environment may slow the growth of the BI market, but cost constraints, compliance and similar measures demanded by the current economy require accurate and timely business data, so BI is expected to remain a vigorous market segment regardless of the macro-economic situation.
DBTA E-Edition -
April 2009 Issue
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What Has Happened to RFID?
Way back in 2003, Walmart announced that it would require Radio Frequency ID (RFID) tags—so-called "electronic barcodes"—to be attached to virtually all merchandise. Walmart pioneered the use of the printed bar code back in the 1970s, and many—myself included—became convinced that the company's directive would be the tipping point leading to universal adoption of RFID tabs in consumer goods and elsewhere.
DBTA E-Edition -
March 2009 Issue
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New Opportunities for Small Software Developers
few years ago, it seemed as though the days of the "micro-ISV"-very small Independent software vendors consisting of one or two developers-were over. The role once played by shareware windows applications had been supplanted by free web applications financed by advertising revenue. The start-up costs for such web applications-including funding a scalable and reliable web hosting infrastructure-were beyond the reach of most small software entrepreneurs.
DBTA E-Edition -
February 2009 Issue
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The Challenge of Massively Parallel Desktops
MOORE'S law—first expressed by Intel cofounder Gordon Moore in 1965—predicts that computing power will increase exponentially, doubling roughly every 18 months. Moore's law has proved remarkably accurate and we have all benefited from the rapid growth in CPU and computer memory available for our desktop computers.
DBTA E-Edition -
December 2008 Issue
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