Test vector

In computer science and engineering, a test vector is a set of inputs provided to a system in order to test that system. In software development, test vectors are a methodology of software testing and software verification and validation.

In computer science and engineering, a system acts as a computable function. An example of a specific function could be ${\displaystyle y=f(x)}$ where ${\displaystyle y}$ is the output of the system and ${\displaystyle x}$ is the input; however, most systems' inputs are not one-dimensional. When the inputs are multi-dimensional, we could say that the system takes the form ${\displaystyle y=f(x_{1},x_{2},...)}$ ; however, we can generalize this equation to a general form ${\displaystyle Y=C(X)}$ where ${\displaystyle Y}$ is the result of the system's execution, ${\displaystyle C}$ belongs to the set of computable functions, and ${\displaystyle X}$ is an input vector. While testing the system, various test vectors must be used to examine the system's behavior with differing inputs.

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