The task of answering all these questions thoroughly in one article is not feasible. Instead, you'll concentrate on the differentiators between two kinds of wine experts.
The role of the Winemaker
This is the simplest of the two since its name itself is a clear clue to the essential job of this expert. A winemaker creates wine. You can visit https://www.sommwine.com/wine-courses/wset/ to get more information about WSET courses online.
Winemakers are responsible for the production of the numerous wine bottles made of wine that provide through the site. A typical winemaker owns the land on which they cultivate vines to produce the grapes used for their wine.
The Sommelier's Role of the Sommelier
The first thing to note is that sommeliers can't normally create wine. But that doesn't mean the sommelier can't create wine. There's nothing that can stop the sommelier from owning his winery. But, those who take on the position of sommelier seek to be experts in the field of wine rather than the process of making wine.
There is a distinction between the two.
Sommeliers are focused on identifying the quality and/or lack there of of the wines they drink. They are skilled in figuring particular notes from the bouquet.
They are aware of the different flavor profiles, aging as well as the other aspects of drinking wines at a level most people do not. They also have an unbeatable knowledge of pairing wines with various types of food items.