I just started a new job where they only have a development (DEV) server and a production (PROD) server. Every place I have worked before has always had a third server in-between DEV and PROD. Some places called the in-between server Stage, and some called it Test. I'm not sure if a Stage and Test server are one in the same, or if they are actually two different types of servers. But they were always used for the same thing - to give the customer a place to review the site before it went live on the PROD server. For the purpose of this post I will call it a TEST server. I asked my new boss about the possibility of creating a TEST server. He asked me to justify the need for a TEST server. Now, I can't debate myself out of a wet paper bag, so my justifications were extremely weak. I was wondering if anyone had a list of reason to support the need for a TEST server, or knew of a web site or book that I can reference to provide a reason why a TEST server is needed. If the concept of a TEST server is outdated, and no longer needed, then please let me know as well. It wouldn't be the first time I was doing something that didn't need to be done anymore. Thanks.