  We consider an information update system where an information receiver
requests updates from an information provider in order to minimize its age of
information. The updates are generated at the transmitter as a result of
completing a set of tasks such as collecting data and performing computations.
We refer to this as the update generation process. We model the $quality$
(i.e., $distortion$) of an update as an increasing (resp. decreasing) function
of the processing time spent while generating the update at the transmitter.
While processing longer at the transmitter results in a better quality (lower
distortion) update, it causes the update to age. We determine the age-optimal
policies for the update request times at the receiver and update processing
times at the transmitter subject to a minimum required quality (maximum allowed
distortion) constraint on the updates.
