BIG DATA is similar to "SMALL DATA",but is Bigger
It is the term for a collection of data sets so large and complex,It becomes difficult to process using on-hand database management tools or traditional data processing applications
Three-dimensional
volume
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To increasing volume (amount of data)
velocity
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velocity (speed of data in and out)
variety
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variety (range of data types and sources)
Architecture
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In 2004, Google published a paper on a process called MapReduce
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MapReduce framework provides a parallel processing model and associated implementation to process huge amount of data.
Applications
Manufacturing
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monitoring social networks,
Web-based businesses
Hospitals are analyzing medical data
Insurance companies
Financial Services
Market
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Software AG,
Oracle Corporation,
IBM, Microsoft,
SAP, EMC,
HP and Dell
It have spent more than $15 billion on software firms only specializing in data management and analytics