No. For example, a 25-year-old manned platform took 60 days from start to finish (IT and organizational consulting). Preliminary work could consist of updating and organizing (the sources of) the documentation that is to be processed by Viewport. But the implementation of Viewport can start, no matter how up-to-date and neatly organized the sources or the documentation are. In fact, some clients use Viewport as a tool for this updating and organizing.