The InfoQ Podcast
Balancing Coupling in Software Design with Vlad Khononov
Apr 3, 2025
In this conversation, Vlad Khononov, a seasoned software engineer and author, delves into the critical concept of coupling in software design. He argues that while coupling is essential for functionality, it needs careful balancing for system evolution. Vlad discusses key factors like knowledge sharing and volatility that impact software architecture. He also highlights the complexities of transitioning to microservices, emphasizing the importance of manageable dependencies and effective knowledge transfer to tackle cognitive load and streamline software development.
42:10
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Quick takeaways
- Achieving a balance between coupling and coherence is essential for functional systems, rather than striving for low coupling alone.
- Understanding knowledge sharing and volatility among components is crucial for managing complexity and accommodating future system changes.
Deep dives
The Importance of Balanced Coupling
Low coupling in software design is often viewed as the ultimate goal, but achieving a balance between coupling and coherence is essential for creating functional systems. Systems must allow components to work closely together in order to fulfill overarching goals, which means that some level of coupling is necessary. The relationship between components should enhance system performance without leading to excessive complexity. Thus, the goal should not be to eliminate coupling entirely, but rather to find an optimal level where components can interact effectively.
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