What does ACID qualities mean?

ACID qualities meaning in Law Dictionary

The four elements of transaction handling that are atomicity, consistency, separation, and toughness.

ACID qualities meaning in Business Dictionary

In electronic business, the four crucial components of valid handling of a transaction tend to be (1) Atomicity: any system- or network-failure during exchange handling should end in the database reverting to the stage it had been in before that transaction commenced, (2) persistence: the transaction-commencing stage as well as the transaction-concluding stage should adapt to the prescribed rules for validation, otherwise the exchange is unsuccessful (aborted), (3) separation: each transaction must be prepared individually of other transactions becoming processed as well, (4) Durability: effective deals should continue to be unaffected by any system- or network-failure.