Using the possibilities of design and production as envisaged above, the following scenario describes
the construction process of a new PDA (personal digital assistant) version:
DigiPal, a manufacturer of digital equipment decides to launch a new version of a portable personal
digital assistant using cutting-edge technology including basic voice control. Therefore, Mrs Green and her fellow members of the DigiPal development team revise the digital model of the
PDA last version during design phase. In a first step, the new available technology for PDA production
is reviewed. Mrs Green browses the component databases of different suppliers. Finally,
she and her colleague engineers come up with several improved, smaller and more light-weight
versions of components as replacements for formerly used components, like faster processors,
more compact rechargeable batteries and thinner sensitive and even flexible displays. In a next
step, the production team uses direct interactive VR techniques to visualize and manipulate the
digital mockup. Mrs Green, in charge of the interface components, replaces the audio device, the
microphone, and other components. Similarly, her colleagues place other new components and
redesign the interior of the PDA. In addition, they use the digital model to develop a new PDA
shell hosting the modified interior, placing the flexible touch-sensitive display outside the shell,
attached to be wrapped around it for transport and unrolled for use