👉 preapplication is a concept in computer science, specifically in the field of artificial intelligence and machine learning, where the user has to perform some action before the model can be used for prediction or decision making. In other words, it's like when you need to go through some steps before you can actually use something. For example, let's say a person is trying to predict whether a dog will bark at a certain noise. They might need to take a few steps (like walking around the room)