Ich möchte Euch auf die Unofficial VMware Visio Stencils hinweisen, wer viel mit Visio arbeiten muss und zum Beispiel Konzepte für Virtuelle Infrastrukturen planen muss wird diese Stencils sicherlich sehr praktisch finden.
Part 1:

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Part 2:
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Part 3:
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Quelle und Download: http://technodrone.blogspot.com/2013/04/vmware-visio.html