What is the role of data packing and unpacking processes in programming?

The processes of packaging (serialization) and unpacking (deserialization) data play a key role in programming, especially when transferring data between different systems or saving object states. Packaging transforms objects into a format suitable for storage or transmission (e.g., JSON, XML, binary format), and unpacking restores the original objects from this format.

For example, when working with web services, data is often serialized into JSON for sending over the network, and deserialized back into objects on the receiving side for further processing.