Hierarchy

Description

Data

Any piece of raw information that is unprocessed e.g. name, quality, sound, image, etc.

Information

Data is processed into a useful form that become information. e.g. employee information (data about employee)

Knowledge

Information is advanced by adding more contents from human experts that become knowledge (e.g. Pension data about employee)

Business Insight

Information is extracted and used in a way that help improve the business processes. (e.g. predicting the trends of customer buying patterns based on current information)