Performance reviewing (PR) is a cornerstone of human resource management (HRM), crucial for assessing and improving employee performance. This chapter explores how PR aligns individual efforts with organizational goals, motivating employees through recognition and constructive feedback. It examines the revolutionary impact of HR metrics and technology, including key performance indicators (KPIs), performance ratings, and performance management software (PMS). The chapter discusses the evolution of PMS, its role in streamlining PR processes, and the integration of artificial intelligence (AI) and data analytics to enhance objectivity and decision-making. It addresses challenges such as data security, resistance to change, potential biases, and the need for a personal touch in feedback. Real-world examples illustrate successful technology implementation, highlighting best practices and future trends. By navigating these challenges, organizations can leverage technology to enhance employee motivation, engagement, and overall performance.