Authorization

TL;DR Authentication or authorization? What is the term I need to use with my current scope of work? Do I need to authenticate the user or authorize it? Ok! I need to authenticate the user and then authorize (or the opposite). Dictionary: Authentication - is the process of verifying the identity of a user. How can we do it? As a basic scenario, when only one person knows the combination of login and password, we need to check if the combination is correct to authenticate the user....