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9
votes
11answers
721 views

Web app for prototype sitemaps (visio replacement) [closed]

Does anyone know of a web app that will produce a sitemap for a web site? I'm not talking of mapping an existing web site, but before we even start prototyping a site. I like to draw out the flow ...
14
votes
8answers
3k views

Is there a web app for creating ER and class diagrams like Visio

Is there a good (preferably free) web application that allows you to draw ER and class diagrams like Microsoft's Visio?