⏱ 7 min read Core Entities Workspace: workspace_id, name, owner_id, plan (FREE, PRO, ENTERPRISE), created_at. Board: board_id, workspace_id, name, description, visibility (PUBLIC, PRIVATE, WORKSPACE), […] Read article

⏱ 7 min read Core Requirements An inventory management system tracks the quantity of products across one or more warehouses, coordinates stock reservations during Read article

⏱ 7 min read Core Entities Auction: auction_id, seller_id, item_id, title, description, start_price, reserve_price (nullable, minimum price to sell), buy_now_price (nullable, instant purchase), start_time, Read article

⏱ 7 min read Core Requirements A digital wallet holds a user’s balance and enables peer-to-peer transfers. Key operations: add money (top-up from a Read article

⏱ 7 min read Core Entities Course: course_id, title, description, instructor_id, category, level (BEGINNER, INTERMEDIATE, ADVANCED), language, price, published_at, status (DRAFT, PUBLISHED, ARCHIVED), total_enrolled. Read article

⏱ 7 min read Why Resilience Patterns? In a microservices architecture, service A calls service B which calls service C. If C is slow Read article

⏱ 7 min read Core Entities Restaurant: restaurant_id, name, address, lat, lng, cuisine_type, rating, is_open, prep_time_minutes (average). MenuItem: item_id, restaurant_id, name, description, price, category, Read article

⏱ 7 min read Overview An ad server matches advertisers’ ads to available ad slots on publisher pages in real time. The two main Read article

⏱ 6 min read What is Multi-Tenancy A multi-tenant SaaS serves multiple customers (tenants) from the same shared infrastructure. Each tenant’s data must be Read article

⏱ 7 min read Core Entities Flight: flight_id, airline, flight_number, origin_airport, destination_airport, departure_time, arrival_time, aircraft_type, status (SCHEDULED, BOARDING, DEPARTED, ARRIVED, CANCELLED, DELAYED). Seat: seat_id, Read article