PTPT and if you say it just right it comes out petit petit (petit the French word for small). But the Petit Petit touch screen user interface out of Germany will have no small impact on computing. This blog is not at all about User Experience because there are much better sources for that type of content. But having said that, application architecture fails if it does not incorporate an effective user experience. So having seen lots of bad and not-so-good user interfaces, when a brilliantly intuitive...

As an update to my earlier blog entry, I noticed this afternoon that Microsoft has opened the Pivot project to public beta. It is a rich client application and as such, it requires a client side download and install. The hardware/software requirements are very steep too, so make a note of that if you are seriously considering this tool. It is, though, a very interesting application and I can see several uses for this software, including my current project. You can view a collection in many different...

More precisely, users will do things to your application that you never expected or intended. But for the most part these users are not evil. There are, though, a small subset of users who are actively attempting to corrupt your Web application and they will more likely than not find a way to do so. A blog over at SANS points this out: Client Side Input Validation is Evil. Again the title overstates the problem, but if your application relies ONLY on JavaScript validation (AJAX or otherwise) your...