BDD - Behaviour Driven Development
❓What is it
- Acceptance criteria in the context of BDD refer to the specific behaviours a system should exhibit in order to be considered correct, the scenarios in which all possible acceptable behaviours are described. The approach focuses using plain language that everyone involved can understand.
👥Who
- The primary creators of acceptance criteria is the product manager
- During refinement the product manager works collaboratively with the tester and developer to review and baseline the acceptance criteria and efficacy of the syntax
🛠 Running the technique
- Identify each possible scenario that might validly occur for the backlog item
- For each scenario, define the behaviour that must be met for it to be considered done and accepted
- Define each behaviour in the form of : GIVEN… (define the precondition, setting the scene) , WHEN.. (define the action to be taken, the thing we are testing), THEN…(define the expected result occurring from that action). An ‘AND maybe added to any of the three statements.