Every derivatives systems vendor claims they have superior analytics, either affiliated with business schools or founded by physicists and chaos pioneers. We have a battle-tested practical view of our analytics. We have developed pricing systems at top investment banks, ran profitable exotics books without blowing up, and know about all the shortcomings of models.
Models are at best inexact mathematical idealizations of trading environments.
At Panalytix, we believe our APeX System, and every system, is mainly a decision-support tool. If you fit every point in the market, it is a pricing tool. The most you can do is to match the market for plain-vanilla hedge products, and know of the variation in exotics pricing due to modeling. APeX deal templates allow you to switch models on the fly, so that you are aware of the range of possibilities. The current GUI is VB, completely decoupled from the analytics through an OLE Server.