Analyze the following physical artifacts and their digital versions:

1. a paperback book and an ebook;
2. a paper-based map and a smartphone map.
3. a residence door with a doorbell and peep hole, and Apples FaceID (as biometric authentication methods).

For each of the three pairs of items above, answer:

• What aspects of the physical artifact have informed the digital app?
• What is the new functionality?
• Are any aspects of the conceptual model confusing?
• What are the pros and cons?