Computer Science

a document that sets out the tests that will be carried out during testing

the input values used to check whether a program works correctly during testing and to see how it behaves in different situations

Programming project: iteration II

While loops

Using trace tables

For loops

Nested loops

Randomisation

Validating data input in a program

Designing robust programs

Programming project: iteration I

In this unit pupils discover how iteration is used to replicate parts of a program. They will analyse the difference between count and condition controlled iteration and how trace tables can be used to trace through loops. They will explore data validation techniques and robust program design.

Programming: iteration

to ensure that it works correctly in all situations

Why is it important to test a program after completing the code?

a document that outlines the tests to be carried out

inputs at the limits of acceptable values

Enter a valid example of normal data for a program that accepts numbers between 1 and 3 (inclusive).

Enter a valid example of boundary data for a program that accepts numbers between 1 and 10 (inclusive).

to delete unnecessary parts of the program

Why is it important to test a program even if it runs?

a program that handles unexpected inputs without crashing

to catch and manage errors so that the program doesn't crash

breaking down a problem into smaller parts

a loop that checks its condition at the start

a loop that checks its condition at the end

Correctly order these tasks in program development:

What ensures that a program catches errors and manages them to prevent crashes?

Programming project: iteration II

Lesson outcome