In the last two months or so, I have developed a strong interest in domain-driven design (DDD).

This is because I’ve been reading “Use Case Driven Object Modeling with UML: Theory and Practice¹” and “Domain-Driven Design: Tackling Complexity in the Heart of Software²”.

Although we have a tremendous number of programming languages and development frameworks today, DDD is a universal skill that transcends the boundaries of these languages and frameworks.

To learn DDD while having fun, I’m planning to (reverse) model well-known web services.

At this time I am considering the following services as subjects for reverse modeling:

• Twitter
• Goodreads
• YouTube
• Google Calendar
• Medium
• Slack
• Japan Airlines
• Spotify
• Airbnb
• Nature
• Facebook
• Amazon
• Indiegogo

I will enjoy the resulting diagrams as a source of conversation with people who share the same interest.