i need an appropriate introduction relevant to project title. and then the answers to the following questions.
Using auditing standards or your textbook, define the following control-related terms:
[a] Control environment
[b] Segregation of duties
[c] Restricted access
[d] Preventative and detective controls
[e] Design and operating effectiveness
 The term “tone at the top” is typically associated with a firm’s control environment. How would you characterize Société Générale’s tone at the top and what effect do you believe that had on oversight at the trading-desk level?
Also I need a relevant and recent reference. I need reference in the text and also in the last page