In a decision table, what does each column represent?

In a decision table, each column represents a rule that defines a combination of conditions and specifies the corresponding actions that should be taken when those conditions are met. Each column provides a unique scenario that indicates how different inputs (conditions) affect the output (actions) in a systematic way.

By organizing information into columns, a decision table offers a clear and concise method for outlining the logic that governs the conditions and actions. This allows testers to efficiently identify all possible scenarios and ensure that the system behaves as expected across various combinations of inputs. It's a vital tool, especially in complex systems where multiple conditions can influence the decisions made by the software.

The focus on the role of each column in associating rules enhances the understanding of how logical combinations are evaluated. Each column's rule aids testers in constructing meaningful test cases that validate whether the system correctly implements the defined logic.