Question: Explain why a pipeline component might fail despite functioning optimally given its inputs, and describe the recommended approach for redesigning the pipeline in this scenario.

Sample answer: A pipeline component might fail even if it is performing perfectly on its inputs because those inputs simply do not contain enough information to solve the problem. For example, if a path-planning algorithm only knows the location of cars but not pedestrians, it will fail to drive safely, even if the algorithm itself is flawless. The recommended approach for redesign is to ask what other information a skilled human would need to perform the same task. By identifying the information a human uses, engineers can determine what new inputs or preceding components need to be added to the pipeline.

Key points:

• A component can only perform as well as its inputs allow.
• Missing information causes failure regardless of the algorithm's quality.
• Redesign should involve asking what a skilled human would need.
• The pipeline must be updated to provide this newly identified information.

Rubric: A strong answer will explain that optimal performance is constrained by input quality and will explicitly mention using a 'skilled human' as a benchmark for determining what new information to add.