Choosing the Right Architectural Styles and Patterns
Jul 15, 2024
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Experienced software architects Vaughn Vernon and Udi Dahan discuss the importance of using the right architectural styles and patterns, including service-oriented architecture, event-driven architecture, and sagas. They emphasize the need for communication among developers, avoiding over-application of event-driven architecture, and using sagas for complex business processes.
Utilize appropriate architectural styles and patterns for effective software development.
Establish common language through patterns to enhance collaboration among developers.
Deep dives
Udi Dahan's Background and Distributed Company
Udi Dahan, known for his work in the SOA space, shared insights into his background and the fully distributed company he runs that involves remote employees worldwide. Utilizing tools like Zoom and GitHub, decisions in the company follow processes that ensure alignment, including a 'request for comments' system.
Service-Oriented Architecture (SOA) vs. Microservices
Udi Dahan discussed the persistence of terms like 'service' in 'service-oriented architecture' and the misconceptions around architectural styles like 'microservices.' Highlighting the importance of using the right tools and techniques appropriately in systems, Dahan emphasized that the focus should be on a balanced application of various patterns, without rigidly adhering to a single architectural style.
Patterns in Software Development
In the conversation, the relevance of software design patterns was addressed, emphasizing the importance of utilizing common language and terminology in collaborative software development efforts. Dahan discussed how rejecting patterns entirely can hinder effective communication and collaboration, showcasing the value of established patterns in streamlining software development processes and fostering a shared understanding among developers.
Event-Driven Architecture and Process Management
Regarding event-driven architecture, the discussion veered into the application of sagas for managing transactions and business processes. Dahan highlighted the importance of understanding the real-world context in software design, steering away from rigid procedural programming approaches. The conversation delved into the significance of policies over processes and the nuanced considerations in applying concepts like sagas in system design.
In this conversation, Vaughn Vernon and Udi Dahan discuss various topics related to software architecture, including service-oriented architecture (SOA), event-driven architecture, and sagas. They emphasize the importance of using the right architectural styles and patterns in the right places, rather than over-applying or misapplying them. They also discuss the role of patterns in software development and the need for a common language to facilitate communication among developers. Additionally, they explore the strengths and weaknesses of event-driven architecture and the misconceptions around API-first design. Finally, they delve into the concept of sagas as a way to handle complex business processes and policies.
Takeaways
Use the right architectural styles and patterns in the right places
Patterns are important for facilitating communication among developers
Event-driven architecture should not be over-applied or misapplied
API-first design should consider the actual business processes and not just CRUD operations
Sagas can be a useful technique for handling complex business processes and policies
09:36 The Role of Patterns in Software Development
18:17 Exploring Event-Driven Architecture
35:07 The Concept of Sagas
Udi Dahan is one of the world’s foremost experts on Service-Oriented Architecture and Domain-Driven Design and also the creator of NServiceBus, the most popular service bus for .NET.