Key Terms Term Definition Programming Team A group of programmers who work together to complete the code. Modules of code are usually given to programmers based on their skills and experience. Variable An identifier associated with a memory location used to store data. Usually given a data type when declared. Can be changed while the program is running. Scope The range of statements for which a variable cab be used. A variable is unusable outside its scope. Local Variable Defined for use in only part of the program and any child subroutines. Reduces the risk of unplanned changes to the variable in other parts of the program. Global Variable Defined at the top of the code and can be used anywhere in the program. Constant A data item with a fixed value that cannot be changed while the program is running. Identifier The name or label used to represent an object within the code. They should be meaningful to help with maintenance. Reserved Word Any word that has meaning in the vocabulary of the programming language. Literal Value Using an actual value, like a number or a string, in a calculation or comparison instead of a variable or constant. E.g. Total_VAT = Total * 0.2 Initialising Variables Providing a variable with a starting value. Code Identation Clearly showing the body of a control structure or routine by indenting the code within. Make maintaining the code and finding errors easier. Code Comments Adding extra lines of information which helps explain how the code works. These lines are not included in compilation.

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