Best Simple System for Now
3 hours ago
- #best practices
- #system design
- #software development
- The article discusses a dichotomy in software development between 'perfectionism' (building thorough, sustainable systems) and 'pragmatism' (quick, hacky solutions), but proposes a middle path called the Best Simple System for Now (BSSN).
- BSSN is defined as the simplest system that meets current needs, written to an appropriate standard, with no extraneous code and exactly the required robustness. It emphasizes designing 'for now' without anticipating the future.
- Key components of BSSN include: 'for now' (avoiding future speculation), 'simple' (minimizing complexity for current requirements), and 'best' (writing high-quality, intention-revealing code without cutting corners).
- The article argues against common objections to BSSN, such as it being overkill for prototypes, incomplete, or inefficient, by highlighting benefits like early delivery, risk reduction, and adaptability through iterative development.
- Adopting BSSN requires good habits (e.g., avoiding over-engineering), courage to try new approaches, and humility to accept uncertainty. It encourages starting small, focusing on feedback, and evolving systems as needs change.
- Examples illustrate BSSN in practice: a custom JSON marshaling solution for nine entity types and the XStream XML library, both demonstrating simplicity and focused functionality.
- The conclusion emphasizes that BSSN allows for both quality and speed, enabling teams to build replaceable, joyful code (using principles like CUPID) that adapts to changing requirements without unnecessary complexity.