Patent ID: RE42414

Claim:
A drawing management and display device for displaying digital information of a system drawing, showing an entire system having a plurality of information items, within a desired display time, said drawing management and display device comprising: a means for referencing a reference unit configured to: reference a total display time required for displaying said system drawing, for determining determine a plurality of different display time priority levels each having a different display time which is shorter than said total display time, and for storing store said system drawing as a plurality of sub-drawings each representing the same area of said system drawing and having a different number of said plurality of information items which make up said entire system such that display of each of said sub-drawings can be accomplished within a different said different display time, said sub-drawings being stored with respective priorities each of which represents an ability to display the sub-drawing within a different said different display time; a selective display designating means for automatically selecting unit configured to automatically select one of said sub-drawings stored in the storing means on the on a basis of the priority thereof in order to accomplish display within said desired display time; and a means for displaying a display unit configured to display selected said sub-drawings within said desired display time in response to said selecting operation of said selective display designating means designating unit .