Data annotation is the process of labeling data to enable computers to recognize patterns using techniques like computer vision and natural language processing. This allows machine learning models to be trained on large datasets. High quality annotated training data is key to building successful machine learning projects. Data annotation services help companies automatically process business data and make more informed decisions by training AI/ML models on labeled images, text, audio and video files. These annotated datasets allow machines to recognize patterns and make accurate predictions, which benefits many industries.