Definition:

 "Big Data" is data whose scale distribution,diversity, and timeliness require the use of new technical architechures and analytics to unlock business insights.

Characteristics:

1. Data Volume

2 .Processing Complexity

3. Data Structure more complex

From the traditional structured data in database, to semi-structure, "Quasi"Structured data such as XML files and webpages, to the unstructured data such as text, image and video file.

Data Repositories : 

Data Spreadmarts ->  isolated data extraction

Warehouses ->    BI and reporting suports DBAs                   

Analytic Sandbox :data replication, high performance

Business Intelligence VS Data Science

• BI : what was..? Structured data and Standard reporting

• DS: What will…? Why? Predicting and modeling

Data Scientists Profile: 

Quantitative; Technical; Skeptical; Curious& Creative; Communicative& Collaborative