Business Domains
Learn how real corporate software systems work across different industries
11
Industries
50+
Domains
200+
Real Systems
What You Will Learn
Each domain explores how real enterprise software systems operate inside large organizations. You’ll see how different components connect, how data moves across services, and which technologies power these platforms behind the scenes.
This knowledge is useful for developers entering a new industry, architects designing scalable systems, and professionals preparing for technical interviews at leading technology companies.
Who Is This For?
System Overviews
How each enterprise system works end-to-end
Integrations & APIs
How systems talk to each other in production
Data & Storage
Databases, schemas, and data flow patterns
Business Context
Why systems are built and what problems they solve
Browse All Industries
Click any domain below to explore the systems used in that industry
Financial Services
Banking, Insurance, Payments, and Investment systems
Commerce
E-commerce, retail, supply chain, and manufacturing