A simple method for transporting the drawings. A simple way for viewing the drawings. Since the web is so diverse, it is important to allow any platform viewing capabilities. A method for sharing comments and annotation. Users of AutoCAD and other CAD packages, can export drawings to this format.
Compression allows for very small files which is very important for web access.
Condition 2 is achieved by using open internet standards to view drawings using browsers. Condition 3 was partially achieved by using browser plug-ins and now by using the CADViewer Java applet. Condition 4 has now been achieved with the CADViewer. A browser plug-in is simply a program that is invoked by a browser when a data format is downloaded by the browser yet unknown to it. The plug-in allows for processing the data.