Astade strores the model elements in the file system of your computer. Every element (parameter, class, attribute …) is a file. This results in a lot of single files and subdirectories.
You would suggest to name directories and files the same as the coresponding model element?
If you work with a repository, e.g. SVN, Astade adds all new generated files automatically to the repository, and some repositories cannot handle a rename of directories.
If you work without a repository (or use Git), Astade offers the option to rename the files and directories to sane names.
SVN can rename directories, that's true. But only if you have a clean copy of the directory you want to rename. And only if you commit immediately after renaming, without doing additional changes inside the renamed directory tree.
Astade has to do a lot more when you rename a directory. All relations in the tree, which are actually links to filenames, have to be corrected. Astade does this in a rename, but that means that a lot of files have their contents changed.
In our tests this trashes the repository steadily. So we don't rename directories when working with a repository (except Git).
In Germany you can contact Thomas Spitzer. He is a founding member of the Astade development team and should be able to give you every Astade support you need. In other countries we don't know anybody who supports Astade, yet.