GUI's Have No Formal Notation.

GUI's are not formal languages and they do not adhere to a formal language. Although they are as complicated as computer languages they suffer from the lack of formalization. When you work with a computer language there is a consistent format to what you are working with. These are called formal languages. Formal languages mean that you don't have to learn a different configuration for every operation. They mean that you can learn the formalism and then rely on what you've learned as you learn new part so the language. They mean that you know what to expect. Even with a new language you know there's going to be a formal language in there somewhere. GUI's are not like that. Every one is different. No formal notation exists to describe them. You can't learn one GUI and then expect to use your knowledge to learn others. You can't even take a step back and look at a formal representation of the GUI to see how it's structured.

There could be a formal notation for GUI's. It would help as we tried to learn the next GUI. We can do this.

MORE...