What is domain testing?

Domain Testing is a test design technique focused on verifying the correctness of input data processing within acceptable ranges. The goal is to ensure that the system correctly handles values from different subsets of the permissible domain. Techniques such as Boundary Value Analysis and Equivalence Partitioning are used.

Application:

• Detecting errors related to boundary range processing or incorrect handling of values within the acceptable set.
• Effectively reducing the number of test cases when there are many possible input values.
• Ensuring coverage of the most critical input data for the application's logic.

Example:

For a "Age" field with permissible values from 1 to 120:

• Equivalence Classes: Invalid (< 1), Valid (1-120), Invalid (> 120).
• Boundary Values: 0, 1, 2, 119, 120, 121.

Testing will focus on values covering these classes and boundaries.