Paul's Growth

I wish we had a specified list of qualities which make a novel a Bildingsroman, because we have read so many that are so different, and I am trying to find connecting aspects which would help me in my decisions. I tend to believe that each of these novels present a specific culture or situation that the characters are involved in, and that the decisions they make are really due to their circumstances, and not real personal growth. However, I see growth in this novel in Paul Berlin. He wrestles with the question of his own identity and his involvement in the war disturbs the depths of his soul. To me, what makes a "coming of age" novel is this very quality in the protagonist: asking questions about their self-worth and intentions in life. So, in the case of Paul Berlin, I do believe Going After Cacciato to be a Bildingsroman.