How would you design an AI system to allow for effective auditing and transparency?

To design an AI system that promotes effective auditing and transparency, create an audit log that records all model decisions, inputs, and outputs along with relevant metadata (timestamps, user IDs, etc.). Incorporate interpretable models or add explainability layers to facilitate understanding of the model's decisions. Additionally, enable access to documentation that outlines the model's training data, objectives, and ethical considerations. Regularly review the logs and model performance to identify and rectify any biases or errors, reinforcing accountability in the AI system.