📝 Note on behavior driven development life cycle

behavior_drive_development.txt

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+Basic narrative structure at the heart of behavior driven development (taken
+from wiki page(https://en.wikipedia.org/wiki/Behavior_driven_development?useskin=vector).
+
+Title
+    An explicit title.
+
+Narrative
+    A short introductory section with the following structure:
+
+        As a: the person or role who will benefit from the feature;
+        I want: the feature;
+        so that: the benefit or value of the feature.
+
+Acceptance criteria
+    A description of each specific scenario of the narrative with the following structure:
+
+        Given: the initial context at the beginning of the scenario, in one or more clauses;
+        When: the event that triggers the scenario;
+        Then: the expected outcome, in one or more clauses.
+
+Example:
+
+Title: Returns and exchanges go to inventory.
+
+As a store owner,
+I want to add items back to inventory when they are returned or exchanged,
+so that I can track inventory.
+
+Scenario 1: Items returned for refund should be added to inventory.
+Given that a customer previously bought a black sweater from me
+and I have three black sweaters in inventory,
+when they return the black sweater for a refund,
+then I should have four black sweaters in inventory.
+
+Scenario 2: Exchanged items should be returned to inventory.
+Given that a customer previously bought a blue garment from me
+and I have two blue garments in inventory
+and three black garments in inventory,
+when they exchange the blue garment for a black garment,
+then I should have three blue garments in inventory
+and two black garments in inventory.