What is behavior-driven development (BDD)?

Question

Accepted Answer

**BDD** — practice combining business and technical perspectives.

**Three Amigos:**
- Business (BA/Product Owner).
- Development.
- Testing.

**Gherkin syntax:**
```gherkin
Feature: Shopping Cart

Scenario: Add item to cart
    Given I am on the product page
    When I click "Add to Cart"
    Then the item should be in my cart
    And the cart count should increase by 1

Scenario: Remove item from cart
    Given I have items in my cart
    When I click "Remove"
    Then the item should be removed
```

**Benefits:**
- Common language.
- Living documentation.
- Automated tests.
- Shared understanding.

**Tools:** Cucumber, SpecFlow, Behave.

Business Analyst: What is behavior-driven development (BDD)?