This qualification reflects the roles of training developers and instructional designers who are responsible for analysing training needs and designing training solutions and products to meet workplace capability requirements, and evaluating the effectiveness of training programs. They may have a role in providing guidance and advice to trainers and assessors, promoting innovative practices, e.g. e-learning, and in researching and incorporating best practice in training and assessment into training programs and products. The volume of learning of a Diploma of Training Design and Development is typically one to two years.