The InfoQ Podcast

Balancing Coupling in Software Design with Vlad Khononov

9 snips
Apr 3, 2025
Guest
Vlad Khononov
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.
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INSIGHT

Coupling Is Essential for Systems

  • Coupling is necessary for a system to function as components must work together towards a goal.
  • Eliminating coupling entirely is impossible because it connects components, which is essential for system survival.
INSIGHT

Complexity Differs from Coupling

  • Complexity arises when there is uncertainty about the result of system changes.
  • Coupling causes complexity only when designed poorly, disproving the idea that all coupling leads to complexity.
INSIGHT

Coupling Manifests in Three Dimensions

  • Coupling manifests across three dimensions: knowledge sharing, distance, and volatility.
  • Managing these dimensions effectively balances coupling for better system evolution.
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