Nathan Ladd
biography
Nathan Ladd has been writing software professionally for over 10 years, specializing in domain driven design, architecture, and systems engineering. He works primarily in Ruby, C, and Javascript. He started his career as an embedded systems engineer working on satellite communication systems, and has recently worked extensively with service oriented architecture and event sourcing in Ruby. Nathan is a contributor to the Eventide toolkit for event-sourced autonomous services in Ruby.
Talk Session
The Aggregate, The Cohesion, and The Cargo Cult: Rise and Fall of Critical Thinking in DDD
Co-presented with Scott Bellware
Since its introduction in 2003, Domain-Driven Design patterns have had a history of cargo-cult implementations, from DDD Light to implementing an entire bounded context as a single class. This presentation isn’t a definitive history of all of the questionable things that have been done in the name of DDD, but it points out particular characteristics and causes of cargo cult thinking in geek culture, and recasts “geek” as a chief cause of long-lived software mistakes, rather than an identity to be venerated.
Hands On Session
Hands-On Event-Sourced Autonomous Services
Co-facilitated with Scott Bellware
Two hours of hands-on labs with a minimum of lecture giving participants hands-on coding experience with event-sourced, autonomous services and the distributed systems fundamentals used in microservices projects.
Topics covered include:
- Events
- Commands
- Entities
- Projections
- Streams
- Handlers
- Services and Components
- Distributed Systems Fundamentals
- Idempotence
- Concurrency
- Testing