Are there any experts familiar with both HP (hyperion planning) and HFM (hyperion financial management)? I've been learning about these two products recently, but I've encountered the following questions, which have plagued me for a long time. I hope experts can help me answer them. Thank you very much: 1. Why are HP and HFM similar products, but only HFM uses the security category? 2. What are the benefits of using security classes in HFM? What problems will occur if HFM does not use security classes? 3. Why does HP not use the security class? What problems will occur if HP also uses the security class?