Let's say you're valuing a SaaS company that's preparing for an IPO. Walk me through how you would apply a DCF model and a Public Comps analysis. How would you handle any discrepancies between the two methodologies, and what are the advantages, disadvantages, and applicability of each method specifically for a SaaS company?

假设您正在为一家计划首次公开募股（IPO）的SaaS公司进行估值分析。请详细阐述您将如何运用DCF估值模型和可比公司分析（CCA）方法，并探讨在估值过程中，您会如何处理这两种方法可能产生的差异。您认为对于一家SaaS公司，这两种方法各自的优势、劣势以及适用性分别是什么？