Test data - GCSE Computer Science Definition

Test data is a set of data used to check if a computer program works correctly. When you create a program, you must make sure it does what it's supposed to do, and that's where test data comes in. It can include different numbers, letters, or words that you put into the program to see how it responds. By using test data, you can find mistakes or bugs in the program before it is used for real tasks. It’s like solving a puzzle by trying out different pieces to see if everything fits perfectly. Test data helps ensure that the final program runs smoothly and meets its requirements.