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.

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