Big Data:Big Data refers to extremely large and complex data sets that cannot be easily managed using traditional database management tools.
Metadata:Metadata provides additional information about other data. It describes the characteristics and properties of data such as its format, source, date created, etc.
Structured vs Unstructured Data: Structured data is highly organized with predefined formats, making it easy to analyze. Unstructured data, on the other hand, lacks a specific format and requires advanced techniques for analysis.