version
a specific state an object assumes at a point in time during execution
version in a sentence
“Each transaction operated on a snapshot version of the data.”
Related Words
version order
an ordering over object versions encoding the sequence each object progressed through
write-read dependency
a relationship where operation A writes a version that operation B subsequently reads
write-write dependency
a relationship where operation A writes a version that operation B overwrites
consistency model
a set of allowed histories constraining which operations are permissible and their ordering
causal consistency
ensures all processes observe causally related operations on objects in identical order across the system
eventual consistency
after updates cease, sufficient time and messaging ensure every node reaches identical final values