Ways to collect and organize data
Primary and secondary data
Definition
Primary Data
Data collected directly from the source for a specific purpose.
Definition
Secondary Data
Data that has been collected by someone else and is being used for a different purpose.
Relational Databases
Definition
Database
Large digital collection of data that serves a specified purpose.
- Relational databases are databases that are organized into tables.
- Columns in relational database tables represent fields that a data entry will have.
- Rows represent the records and entries.
- Imagine a school wants to store their student data in a relational database.
- The columns of this database would define the data stored about a student (name, age, grade, subjects, etc.)
- Rows in this database would be the information about every individual student (one row = one student).
Data Validation and Verification
- Data validation refers to the process of ensuring that only valid and correctly formatted data can enter a database.
- Data verification refers to the process of ensuring that the data in the database is accurate and relevant to the purpose of the database.
- What is the difference between primary and secondary data?
- How do databases help in organizing and managing data?
How does the way we classify and organize data influence the insights we can derive from it? Can data be truly objective, or is it always subject to interpretation?
