This chapter reviews quality as a multifaceted and highly debated yet central concept within interpreting studies. It highlights the crucial relevance of quality with regards to deepening our understanding of the influence of different technology-related modalities of interpreting on current and future practice. The chapter begins by revisiting foundational dimensions of quality in interpreting and examines the key challenges posed by the intersection of technology and interpreting. It then synthesises how quality can be evaluated and measured and considers the added complexities introduced by technology. To this end, this chapter provides a comprehensive review of the methods and perspectives used to assess quality in various technologised workflows, grouping them into three categories, namely, top-down, bottom-up, and automated methods. The chapter also demonstrates how technology integration into different interpreting practices makes the process of assessing quality even more intricate, yet increasingly needed, while also outlining the benefits and drawbacks of technology-driven quality assessment. The chapter concludes by discussing future developments, particularly the need for a hybrid approach to quality evaluation that balances scalability with deeper, more nuanced insights to address the complex, nuanced interplay between interpreting and technology.