Openbravo POS is a very easy to use POS system. I decided to loosely base OpenPOS on Openbravo POS! I will be using WPF and PRISM to create the user interface for OpenPOS! Please note that this series will mainly focus on the UI design and user experience of the application. We will also look at how PRISM (Composite Application Guidance) can be used to develop a “Real World” application. Read more: Rudi Grobler in the Cloud