I'm looking for application modules (in the form of plugins) that cover sets of related tasks like asset management, in a basic UI. A simple use case example: a water gauge (point feature with a 1:n relation to a non-geometry table), that is being maintained/checked periodically; each maintenance gets its own table entry with status/date/etc. The entries are sortable/searchable within the UI using forms.
I went through the plugin-list and the closest thing I could find was norGIS. I did some research and pretty much everything I found was companies offering application module(s) (programming) as service, but couldn't find any templates. Are there none? I realize they'd need tailoring, but not having to start from scratch would be nice. In case there are none, is http://www.qgisworkshop.org/html/workshop/plugins_tutorial.html still the best way to start off?