Big Data Vs BI (Business Intelligence)?

Traditional BI methodology works on the principle of assembling all the enterprise data in a central server.  The online transaction processing (OLTP) transactional data is transferred to a denormalized environment called as a data warehouse. The data is usually structured  with very little unstructured data.

Big DataBI
Data is retained in a distributed file system Data is retained on a central server
Code To Data (The processing functions are taken to the data) Data To Code (data being taking to the functions)
Data is of different formats, both structured as well as unstructured.Mostly Structured
Data is both real-time data as well as offline data.Mostly Offline

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