The Volcker Rule was a key post-financial crisis regulation aimed at limiting bank risk, with its restrictions on proprietary trading being a core component. As a compliance professional, what do you see as the main challenges financial institutions face when implementing the Volcker Rule's proprietary trading restrictions? How should compliance departments effectively identify, monitor, and manage associated risks to ensure compliance?

Volcker Rule是金融危机后旨在限制银行风险的关键监管之一，其中对自营交易的限制是核心。作为一名合规专业人士，你认为金融机构在实施Volcker Rule自营交易限制时面临的主要挑战有哪些？合规部门应如何有效地识别、监控和管理相关风险，以确保符合规定？