A Cause-Effect Graph is a visual representation that illustrates the logical relationships between causes (inputs, conditions, or triggers) and effects (outputs or results) in a system. It is often used in software testing to design test cases by mapping conditions to their expected outcomes systematically. Key aspects include:
Purpose:
- Model complex logical relationships
- Aid in test case design
Components:
- Causes (inputs)
- Effects (outputs)
- Logical operators (AND, OR, NOT)
Process:
- Identify causes and effects
- Define logical relationships
- Create the graph
- Generate test cases
Benefits:
- Helps create comprehensive test cases
- Identifies missing or conflicting requirements
- Supports systematic testing
Limitations:
- Can become complex for large systems
- Requires practice to create effectively
Cause-Effect Graphs help testers design thorough test cases based on logical relationships.