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Data Interview Question

Restaurant Order Preparation Time

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Requirements Clarification & Assessment

  • Objective:

    • Develop a predictive model to estimate the order preparation time in a restaurant, from order receipt to readiness for delivery.
  • Key Questions:

    • Are we predicting preparation time for a specific type of cuisine or multiple cuisines?
    • Is the model intended for a single location or multiple restaurants?
    • How accurate does the prediction need to be? Is there a tolerance for error?
    • What is the priority between accuracy and interpretability of the model?
    • Are there any data privacy concerns or restrictions?
  • Data Requirements:

    • Historical Order Data: Includes order details, preparation time, and timestamps.
    • Restaurant Operational Data: Number of staff, kitchen size, equipment, and layout.
    • External Factors: Day of the week, time of day, special occasions, holidays.
    • Customer Data: Order size, type, and complexity.
  • Potential Challenges:

    • Variability in preparation times due to human factors (e.g., chef experience).
    • Missing or incomplete data for certain predictors.
    • Non-linear relationships between features and preparation time.