This article is a follow up to my previous article on my internship at General Electric. It’s just a short note to sum up some important things I learnt. 1. Theory learnt in class is actually applied in the industry: there are some things that you learn in university you will probably never use again but other things you will use every day of your life. At the beginning I was like, who cares if the 7 layers of the OSI model are the application, the presentation, etc.? And who care about normalising the databases until it is in Boyce-Codd normal form? Actually a lot of people take those things very seriously. 2. Documentation is important. I used to see it as a time consuming process that was barely worth doing. Now I understand how it increases teamwork efficiency....