Trace theory is like a storybook that keeps track of everything that happens in a story. Imagine you are reading a story about a little girl who goes on an adventure in a forest. Every time something important happens, you make a note of it in a special notebook. For example, when the little girl meets a talking animal, you write down that she met a talking animal.
In computer science, programs also have stories that contain a lot of information. Trace theory is like the special notebook that keeps track of everything that happens in a computer program. It helps programmers to understand how the program works and to identify any errors or problems. It keeps track of all the different things that happen in a program, like when a function is called or a variable changes its value.
So, trace theory is like a storybook for computer programs that helps us understand what is happening inside them.