Virtual Domain-driven design
What is an aggregate with Thomas Ploch
Nov 6, 2019
Thomas Ploch, an expert in the aggregate pattern, discusses its importance in software development. They explore the definition of aggregates, the challenges in ensuring consistency and security, and the evolution of aggregates in Domain-driven design. The conversation delves into managing interactions between aggregates, implementing aggregate roots, and comparing functional and object-oriented programming in DDD.
01:03:00
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Quick takeaways
- Aggregates enforce invariance by consolidating business rules, making illegal states unrepresentable.
- Transition to functional programming enhances aggregate modeling through state machines and consistency evaluation.
Deep dives
Understanding Aggregates in Domain-Driven Design
Aggregates, as discussed in the podcast, serve as a crucial solution to a variety of interconnected system problems. The concept of aggregates evolves over time and requires a shift towards representing them as process-based, temporal, and event-driven models. By centralizing closely related business rules within an object or function, individuals can begin enforcing invariance, a critical property of aggregates. Focusing on consolidating business rules and making illegal states unrepresentable can significantly enhance the effectiveness of aggregate implementation in system design.
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