I think it’s important so that people don’t steal the artists work or take credit for what they worked hard on.
        
                    
             
        
        
        
In my opinion you should do what you love. It is very unlikely to have a successfully career in art, and engineering is definitely a safer choice. But life is about taking risks, and you want to do what makes you happy with the time you have
        
                    
             
        
        
        
They don't really have a where(???)
However the four steps of art history operations are: 
Description: Ask, when, where, and by whom was the work created. You can get the basic information from the credit line, but you would need to do further research to learn about the artist.
Analysis: Ask, what is the style of the work? Can the work be associated with an art movement? To analyze an artist's individual style, look at how the artist uses the elements and principles of art to express personal feelings and ideas, and compare several works by the same artist.
Interpretation: Ask, how did time and place affect the artist's style in terms of subject matter, composition, and content? Find out about the artist's life and surroundings and which other artists influenced him or her.
Judgment: Ask whether this work is significant in the history of art. For clues, you can read what art historians say about the artist and make your own assessment.
Good Luck :)