Freezing

Freezing is an operation making an item or object, or any of its attributes or properties, out of the reach of ordinary editing process or modification. It may be carried out automatically through derivation, or manually by refreezing.

Thawing

Thawing is an operation making a frozen item or object, or any of its attributes or properties, available for ordinary editing process or modification. It may be carried out only manually by unfreezing.