Identify common data formats

Question 1

What is data?

Answer 1

Collection of facts such as numbers, descriptions and observations used to record information. Data structures which data is organized represent entities and each entity has one or more attributes or characteristics.

Question 2

What are the data formats?

Answer 2

1. Structured data
2. Semi-strucuted data
3. Unstructured data

Question 3

What is structured data?

Answer 3

Data that adhered to fixed schema - all data have same fields or properties. The schema for structured data entries is tabular - each row represent a data entity, and the column represents attributes of the entity. Structured data is often stored in multiple tables and referenced using key values in a relational model.

Question 3

What is semi-structured data

Answer 3

Semi-structured data is information that has structure but allows for variation between entity instances. Example, entities may have one, many or no email address. Common format is JavaScript Object Notation (JSON)

Question 4

What is unstructured data?

Answer 4

Examples of unstructured data data include documents, images, audio and video data, and binary files.