Talk:Are you gonna eat that

I don't have time right now to add the diagram, but there is one thing in particular that was missing from the examples put up in class. There should be some way to differentiate between devices that have a camera and devices that don't. Some PDAs and cellphones do not have a camera, so I assume that the barcode numbers would have to be manually entered. Maybe there should be a class called PortableDevice, which has two subclasses: CameraDevice and NonCameraDevice. The CameraDevice has the OBCR, and the NonCameraDevice has some way of manually entering the barcode. --Elliot Fisher 04:24, 6 August 2008 (UTC)