AI 시스템 사고

It asks where errors originate and how changes propagate through the complete service. Optimizing a model in isolation can miss the component that determines the user’s actual outcome.

주요 시사점

• Map dependencies and ownership.
• Look for feedback and measurement effects.
• Test user-visible outcomes across component boundaries.

Draw the path from input collection to the final result. Include preprocessing, retrieval, model execution, external tools, review, storage, and feedback. Record the owner and failure behavior of each dependency, especially boundaries between teams or services. Look for feedback loops. Recommendations affect what people see; their reactions become future data. A measurement can therefore be influenced by the system being measured. Changing one stage can shift the distribution of work arriving at another stage. Track constraints across the chain. A faster model may not improve completion time if retrieval is slow or every output waits for manual approval. A more verbose answer can increase reading time and obscure the action a user needs. Test failures at component boundaries as well as normal operation. Missing fields, outdated caches, duplicate events, permission errors, and delayed feedback can create incorrect outcomes without a model crash. Maintain end-to-end checks that verify the user-visible result and enough version information to trace a regression.

1. In a constructed workflow, retrieval takes 1 second, generation takes 2 seconds, and review takes 40 seconds.
2. Cutting generation time in half reduces total time from 43 to 42 seconds if the stages are sequential.
3. Study why review takes 40 seconds. Better source presentation may matter more than another model-speed optimization.

The invented timings show how the complete workflow changes the optimization priority.