IB Digital Society 3.1C Data Life Cycle Key Definitions

A shared, append-only record made of blocks linked by cryptographic codes, so that any later tampering is easy to detect and the data stays trustworthy without a central authority.

The stages data passes through from the moment it is created, through storage, use, and preservation, to its eventual destruction.

Replacing real values in a dataset with realistic but fake ones, so the data can be used for testing or analysis without exposing the real people behind it.

Scrambling data using a key so that only someone with the correct key can read it, protecting the data both while it is stored and while it is being sent.

A device that detects something about the physical world, such as light, sound, distance, or temperature, and converts it into data a system can process.