== Purchasing a Subscription ==== Actors: **Registered Boss** **1.** The user selects a subscription plan. **2.** The system creates an active subscription. **3.** The payment is recorded. {{{#!sql INSERT INTO user_subscription (user_id, plan_id, start_date, end_date, status) VALUES (1, 2, CURRENT_DATE, CURRENT_DATE + INTERVAL '6 months', 'ACTIVE'); INSERT INTO payment (user_id, subscription_id, amount) VALUES (1, 1, 49.99); }}}