Testing and evaluating programs

Logic error

An error in an algorithm that results in incorrect or unexpected behavior

syntax error

Errors that occur when the grammar rule of a programming language are not followed

Runtime error

An error that occurs when the computer tries to run code that it cannot execute

debugger

a computer program that assists in the detection and correction of errors in other computer programs

normal data

Data that is within the limits of what should be accepted by the program

boundary data

Data that is at the outer limits of what should be accepted by the program

Erroneous data

Data that should not be accpted by the program