Algorithmic constructs

Algorithmic constructs

1. Modularisation

   • Modularisation is used to reduce the complexity of a system by deconstructing it into independent units or modules.

2. Iteration

   • Iteration is also called repetition and is used when something is repeated over and over again, so anything where the program goes round in a loop. Typically programmed using code such as WHILE, REPEAT and FOR statements. See the example of Pseudocode using a FOR loop to write out numbers 1 to 10:

3. Select and condition

   • A selection statement uses a condition to select, or determine, the next line of the program that is to be executed.

4. Assignment

   • Assignment is used to store the value of an expression into a variable.

5. Sequence

   • A sequence is a number of instructions that are processed one after the other.