Big data
The term Big data was coined by Roger Mougalas in 2005, a year after Web 2.0 was coined. Web 2.0 was used to indicate the data era where traditional business intelligence tools were ineffective due to the size of the data they had to deal with. The same year, Yahoo developed Hadoop on Google's MapReduce with an ambition to index the World Wide Web. Hadoop is an open source framework that can handle both structured and unstructured data.
Structured data is identified by well-defined data types, data rules, and controls that they would adhere to. Structured data typically sits in databases where the exact parameters of data are predefined. Oracle, Microsoft SQL Server, and several other database management systems were very focused on dealing with structured data.
Unstructured data does not have the same level of structural discipline, primarily because of the way it is generated. Unstructured data comes in all shapes and forms most of the data that exists...