See [here](http://cs.stackexchange.com/questions/5008/differences-and-relationships-between-randomized-and-nondeterministic-algorithms) for why and in which way [tag:nondeterminism] and [tag:randomness] are not the same!

Fitting category tags are [tag:automata] and/or [tag:computation-models]. Other related tags include [tag:finite-automata], [tag:pushdown-automata], [tag:linear-bounded-automata], [tag:turing-machines], [tag:cellular-automata], [tag:formal-grammars], and probably more.

Note that in the context of grammars, nondeterminism should not be confused with [tag:ambiguity], either!