Facade

 Backward compatibility...   A word that I used to hear when I started my career. You design your APIs with backward compatibility in mind, don't break anything when you are upgrading, think about this, think about that etc. Well, those teachings from my previous mentors didn't go in vain, as I made a fundamental change in how we report problems @  Gelato .    You see recently @  Gelato , the CS (Customer Support) team moved from A ticketing management system to B ticketing management system, which is a monumental task for all the people involved in the CS team. Even though the fundamental concept remains the same the places, the attributes the concepts, and the naming of different attributes all change if you have this transition. And thus it was a big change for the whole company.    After the decision was taken, the first step was to create a well-written transition document, which the good folks at the CS team tackled. Special thanks to  Bartosz ,  Kyle  and  Anastasiia  fo