If you have a certain number of employees and you want to keep track of their tasks, what they are in charge of in your business and on which possition they are working, you can define job titles and assign them to your employees.
To set that up, go to:
Manufacturing > job titles > add new
Once you enter the wanted job titles and save the changes, here is how your list will looke like:
Now, when you start entering employees, you will be able to select the job title from the drop-down menu.
The job title of the particular employee will appear when you are assigning them tasks, reviewing the employee list, etc.