  In this report, we present a framework for implementing an arbitrary
$n$-outcome generalized quantum measurement (POVM) on an $m$-qubit register as
a sequence of two-outcome measurements requiring only single ancillary qubit.
Our procedure offers a particular construction for the two-outcome partial
measurements which can be composed into a full implementation of the
measurement on any gate architecture. This implementation in general requires
classical feedback; we present specific cases when this is not the case. We
apply this framework on the unambiguous state discrimination and analyze
possible strategies. In the simplest case, it gives the same construction as is
known, if we opt for performing conclusiveness measurement first. However, it
also offers possibility of performing measurement for one of the state outcomes
first, leaving conclusiveness measurement for later. This shows flexibility of
presented framework and opens possibilities for further optimization. We
present discussion also on biased qubit case as well as general case of
unambiguous quantum state discrimination in higher dimension.
