This document provides information and resources for evaluating the performance of a data centre operator. It includes sample performance review forms, phrases for writing performance reviews, and descriptions of common performance appraisal methods. The top part of the document outlines a sample two-page performance review form for a data centre operator, including sections to rate job performance factors, document employee strengths and areas for improvement, and obtain signatures. The second part provides example positive and negative phrases to use when writing reviews for various performance dimensions such as attitude, decision-making, and teamwork. The third part describes 12 common performance appraisal methods, such as management by objectives, critical incident technique, behaviorally anchored rating scales, and 360-degree feedback.