I'll Know It When I See It  Viewing drawings is the most basic
feature of document management packages. More nonCAD users, such
as those in technical publications or purchasing, need to find
drawings, examine them for detail, and possibly plot them out.
In its simplest form, a viewer lets people only look at drawings
to extract information.  Documents must be in a database before
authorized users can view them. Most viewers and document
systems are based on widely used databases. This information is
typically called metadata, or data about company information,
such as which computer holds drawings for a particular project,
which computer stores the specs for a project, and which
computers have memos and communications for the job. With this
setup, the user need not know where the file is stored to view
it.  For those faced with managing a mountain of paper drawings,
one expert suggests dividing the pile into active and inactive
stacks and scanning only the most recent or active drawings.
Most viewing packages