Model issue: currency unit vs currency resource type
This is a duplicate of this valnet issue, which I will copy and paste here to get a different set of comments. Although you can comment on valnet, too, if you like.
We got currency Units and currency Resource Types whose unit is the currency unit.
For example, in Sensorica, we got Canadian Dollars whose unit is the currency Canadian Dollars.
Something is probably wrong with this picture, but I don't know exactly what it is or how to fix it.
We also have Virtual Account Resources, Economic Events, prices, and other things measured in CAD, so the CAD currency Unit seems to be necessary, and is not always a duplication.
And then we got Payments and other Economic Events whose Resource Type is CAD the Resource Type and whose unit is CAD the currency Unit. So in that case, it is a duplication.
We may need to consult a philosopher...
I can hear @elf-pavlik laughing at this all the way from Europe...but many of us still need to be able to deal with money, unfortunately.