Domain driven design @FrOSCon
0 likes3,381 views
The document discusses domain-driven design and NoSQL databases. It introduces domain-driven design principles like defining a ubiquitous language within a domain. It then explains some differences between SQL and NoSQL databases, providing examples of document and graph databases in NoSQL. The document advocates finding a common language within a domain and evolving data models iteratively with implementation.
Domain driven design @FrOSCon
- 1. Escaping the Tower of Babel Domain Driven Design & NoSQL
- 2. Escaping the Tower of Babel Domain Driven Design & NoSQL
- 3. vI class SpaceShuttle end ! class Astronaut end
- 4. Domain Driven Design Eric Evans • Find an ubiquitous language • Every person involved understands the language • The language is based on the domain
- 5. Domain Driven Design Iterative Development Close relationship between devs & domain experts
- 7. From Köln / Cologne
- 8. I work for ArangoDB GmbH
- 10. ArangoDB is an Open Source NoSQL Database
- 11. But what is NoSQL?
- 12. NoSQL SQL
- 13. Not only SQL SQL
- 14. What is NoSQL? What is SQL? What is a relational algebra? What is a relation? Not SQL A relational algebra An algebra on relations
- 15. {(Alice, 1983-07-1, 1) (Bob, 2014-03-19, 2)}
- 16. name birthday city Alice 1983-07-1 1 Bob 2014-03-19 2
- 17. Disconnect Ownership I v type: spaceshuttle name: alice…
- 18. Entity Value Object Service Identified by ID Value What it does State Mutable Immutable Stateless
- 19. + Factories + Repositories + Aggregates
- 20. DENORMALIZATION
- 21. Lift the restriction • Tuples containing other Tuples • Tuples with arbitrary attributes
- 23. Document Space Shuttle Store Parts
- 24. Itype: spaceshuttle vname: alice astronaut: 1 spaceshuttle: 3
- 25. JOINS
- 27. Alice Ownership SpaceShuttle Graph Database
- 28. Alice Ownership SpaceShuttle Parts
- 29. Alice Ownership SpaceShuttle Parts I’m a document!
- 30. Alice Ownership SpaceShuttle Parts Me too!
- 31. Alice Ownership SpaceShuttle Parts
- 32. Multi Model SpaceShuttle Alice Database Ownership Parts
- 33. Disconnect Ownership I v type: spaceshuttle name: alice…
- 34. Itype: spaceshuttle vname: alice Ownership since: 2003
- 35. Explain graphs.
- 36. Learn about the domain.
- 37. Find the common language.
- 38. Build one model for everyone involved.
- 39. Evolve the model alongside the implementation
- 40. moonglum moonbeamlabs arangodb.org Explain graphs. Learn about the domain. Find the common language. Build one model for everyone involved. Evolve the model alongside the implementation