We used Adobe Flash for SCADA visualization in the past, but we want to move towards SVG for new web-based SCADA projects.
SCADA often uses the same, interactive symbols (like pumps, valves, ...) within the same document and with Flash I used to create a "Movie Clip" for such symbols/objects. Whenever I needed to modify a symbol I could simply modify it's Movie Clip and all instances of it automatically updated themselves in the same way. This was very handy.
Is something similar possible with Inkscape (or any comparable SVG drawing program)? I'm talking about drawing a symbol and create several clones (not simple, independent copies).