LaTeX.org

Easier only if you are familiar with an external tool (whichever it may be). But a package like pgf/tikZ would give you more consistency for your document (i.e. fonts) and more precision since the graphic would be programmed and not really drawn. Hence it would look more professional.

With pgf ...

Thank you very much.

Would it not be easier to create the graphic externally and include it as an image?

Which easy program (probably drag & drop) can I use for that?

Hello

I'm using MiKTeX and TeXmaker as editor.

How can I create tables like in the attachment? Important are also the arrows, nodes and labels inside the table. I don't want to draw the same tables.