System design focuses on assembling services, contrasting software design's focus on code. Aid includes app servers, databases, caches, queues, and other crucial components. Good design is often characterized by a lack of issues over time, evoking feelings of ease and reliability. In contrast, impressive-looking systems may suggest fundamental flaws and over-design. Engineers often have different perceptions of what constitutes effective design, which can be shaped by personal experiences in the field.
Good system design often looks underwhelming, appearing as if nothing is going wrong for a long time. It creates ease and reliability without impressive complexity.
Recognizing good design includes feelings like 'this ended up being easier than I expected' or 'I never have to think about this part of the system; it's fine.'
Bad design tends to be more visually impressive, while good design often lacks the flare that draws attention. This leads to the suspicion of over-design in complex systems.
Each engineer may perceive system design differently, but the personal experience often informs their understanding of what makes a system effective.
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