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Why Functional Decomposition Leads to Bad System Design
- System decomposition should clearly show how components interact to prevent future difficulties in maintenance and extension.
- Avoid functional decomposition as it creates complex dependencies, inhibits component reuse, and leads to tight coupling within systems.
- Functional decomposition categorizes services based on tasks performed, resulting in rigid service sequences and limited reusability.
- Relying on functional decomposition makes services tightly coupled, bloated, and difficult to maintain or extend over time.
- Having the client handle service calls increases its complexity and ties it closely to system logic, leading to challenges in adapting to changes.
- Multiple entry points for clients increase redundancy, effort, and costs, while a unified entry point simplifies architecture and management.
- Beware of bad system design caused by functional decomposition, as it introduces unnecessary complexity and tight coupling.
- Anti-design patterns and strategies to avoid functional decomposition will be explored in upcoming articles by the author.
- Continuous learning and practice of effective system design principles are crucial in ensuring robust and scalable software solutions.
- Check the previous article linked in the conclusion for further insights on system decomposition and design principles.
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