  Quality requirements are critical for successful software engineering, with
maintainability being a key internal quality. Despite significant attention in
software metrics research, maintainability has attracted surprisingly little
focus in the Requirements Engineering (RE) community. This position paper
proposes a synergistic approach, combining code-oriented research with RE
expertise, to create meaningful industrial impact. We introduce six
illustrative use cases and propose three future research directions.
Preliminary findings indicate that the established QUPER model, designed for
setting quality targets, does not adequately address the unique aspects of
maintainability.
