The ADDIE model is a systematic process for designing, developing, implementing, and evaluating training. The acronym stands for analysis, design, development, implementation, and evaluation. The analysis phase involves identifying the needs, goals, and audience of the training, the design phase involves planning the content, methods, and materials of the training, the development phase involves creating and testing the training materials, the implementation phase involves delivering and facilitating the training, and the evaluation phase involves assessing the effectiveness and quality of the training. The ADDIE model helps you to follow a structured and iterative process for creating and improving your training project.