I. Introduction
We consider an information update system where an information receiver requests updates from an information provider in order to minimize the age of information at the receiver. To generate an update, the information provider completes a set of tasks as in [1]. We study the quality of updates as introduced in [2], [3] via their distortion. We model the quality (i.e., the distortion) of an update as a monotonically increasing (resp., monotonically decreasing) function of the processing time spent to generate the update at the transmitter.