This document is Assessment Workbook 3 for the TAE40116 Certificate IV in Training and Assessment. It covers various aspects of the training and assessment process, including competency-based assessment, assessment principles, and the dimensions of competency. The workbook addresses several units of competency such as TAEASS401, TAEASS403, and TAEASS502. It includes knowledge assessments, practical assessments, and case studies. The assessment methods include planning assessment activities, developing assessment tools, and participating in assessment validation. The workbook also provides information on reasonable adjustments, the rules of evidence, and the context for assessment. It outlines the assessment requirements, methods, and resources needed. The workbook also contains projects related to developing and validating assessment tools, as well as case studies to illustrate the application of assessment principles. The document offers a comprehensive guide for trainers and assessors to understand and implement assessment processes effectively.