Introduction.- Chapter 1: Professional Competence as a Subject of Competence Diagnostics.- Chapter 2: Categorial Framework for Modelling and Measuring Professional Competence.- Chapter 3: The COMET Competence Model.- Chapter 4: Developing Open Test Tasks.- Chapter 5: Psychometric Evaluation of the Competence and Measurement Model for Vocational Education and Training - COMET.- Chapter 6: Conducting Tests and Examinations.- Chapter 7: Evaluating and...