The idea is that the user sees a page that shows all the packages for the gym, so that he$/$she chooses the most appropriate one for him$/$her$.$ After that, we take the information from the gyms database, and then it will be verified whether he$/$she is registered in the gym or not, and this is through authorization. If he$/$she is registered in the system, he$/$she will complete the payment process. If not, it will be sent back to registration. My question now is whether I put the payment process as a single object or not. If I put it as a single object, how do I act after if$-$else, which will be in the authorization object?

Also if there are any modifications or improvements please edit and let me know

I hope you draw it on paper