What technology allows Daniella to track her mailed package?

The most effective way for Daniella to track her mailed package is through the shipping label code scanned during transit. This technology relies on a system of barcodes or QR codes that are assigned to each package, which are scanned at various checkpoints during the shipping process. Each time the package is scanned, the information updates the tracking system, allowing Daniella to see the real-time status and location of her package. This provides the most accurate and dynamic tracking experience.

While apps on her mobile phone can facilitate this process by providing a user-friendly interface to check the status, the underlying technology that enables the tracking is still the shipping label code. Similarly, a delivery confirmation email informs Daniella once her package has been delivered, but it does not provide ongoing updates during shipping. The tracking number printed on the package is also helpful, as it allows Daniella to look up her package's status, but it is the scanning of the shipping label that actively updates its location throughout transit. Thus, the shipping label code is integral to the package tracking process.