Here is an excerpt from an interview with SolidWorks CEO Jeff Ray at SolidWorks World 2010.
Deelip: After the direct modeling demo you mentioned that your development team received help from Dassault Systemes. Does this mean that the new stuff that you have been working on uses the V6 technology from Dassault Systemes? I ask because I am curious to know whether SolidWorks will be moving away from the Parasolid modeling kernel.
Jeff: What happens under the hood does not really matter to the customer. A SolidWorks user is really not bothered about which modeling kernel we use. We let the user worry about solving his problems and we worry about how we can help him do it.
I am not sure how you feel, but our engineers do happen to care "what happens under the hood", especially when it comes to data migration. Here is another tid-bit I found interesting.
Deelip: I found the Direct Modeling particularly interesting because all along you have maintained that SolidWorks would not have it and now suddenly we see this.
Jeff: I still say that Direct Modeling is not the right approach. Our competition is forcing their customers to choose between one method or the other. Furthermore, they say that if you select one method, you lose the history and features. If you choose the other, then you cannot push and pull stuff around. That is not the right way to go about doing it. I don’t know what you want to call this and frankly, it does not matter. As far as I am concerned users simply want to use different methods to model depending on what they are doing. We are simply giving him the tools to do that.
There are a couple of humorous things to note here. One, he doesn't think direct modeling is the right approach, yet his company is investing millions of dollars to develop this technology and "catch up". Two - his comments are directed at Synchronous Technology, and they couldn't be more false. We do not force anyone to do one thing or the other; we do not throw away your history and features. We simply allow you to use the best of the two distinct methods, history based constrained modeling and explicate modeling, at the same time. I wonder if his tune will change in a few years when Works finally catches up and has anything that really competes with Synchronous Technology.
Your company can stay with the Parasolid kernel. You can avoid being part of this experiment. You can maintain your legacy data, open it directly without any migration tools and edit it faster and easier than you could in Works with Synchronous Technology.
The time to look into Solid Edge with Synchronous Technology is now, let us show you why this is the right move for your business.