March 7th, 2025

Great software design looks underwhelming

Great software design emphasizes simplicity and risk elimination, focusing on effective strategies like centralizing state and using robust systems to enhance reliability and maintainability while avoiding unnecessary complexity.

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Great software design looks underwhelming

Great software design often appears simple because it focuses on eliminating potential failure modes during the design phase. The author reflects on past experiences with coding challenges, emphasizing that effective design should prioritize simplicity over complexity. This approach involves two main strategies: being reactive to failures through error handling and logging, or proactively designing to eliminate risks altogether. The article discusses various methods to achieve this, such as moving components out of critical paths, reducing the number of components, centralizing state to avoid inconsistencies, and utilizing robust systems like the Unicorn web server. The author argues that while complex solutions may seem appealing, the best designs are often straightforward and unexciting, effectively managing risks without unnecessary complications. Ultimately, great software design is about making pragmatic choices that ensure reliability and maintainability, rather than chasing after trendy or complex ideas.

- Great software design prioritizes simplicity and risk elimination.

- Effective design can involve moving components out of critical paths and centralizing state.

- Utilizing robust systems can enhance reliability and reduce failure modes.

- Simplicity in design often leads to better maintainability and fewer operational issues.

- Complex solutions are not always the best; straightforward designs can be more effective.

Link Icon 6 comments
By @PaulHoule - about 2 months
It reminded me at the time where I was working at a 20 person startup and developing spike prototypes ahead of the other 15 developers. My favorite praise that I'd get from management was that my plans were "simple but not simplistic".
By @Clippybara - about 2 months
The software equivalent of "an ounce of prevention is worth a pound of cure". I will note, however, that the reviewer that Goedecke is disagreeing with isn't necessarily wrong, if the goal of the challenge is not just to create the absolute best possible code but to also demonstrate mastery. It would be a hell of a flex to write a complicated script though, then comment out everything that wasn't absolutely necessary and just leave the simple necessities.
By @yosito - about 2 months
This article is also a perfect example of why coding challenges are terrible way to interview.
By @j45 - about 2 months
Sublime headline.
By @__loam - about 2 months
"An idiot admires complexity, a genius admires simplicity. A physicist tries to make it simple. Anyway, an idiot, anything the more complicated it is, the more he will admire it. If you make something so clusterfucked he can't understand it, he's gonna think you're a god cause you made it so complicated nobody can understand it."