Positional measurements that I don't understand.

Hi Colleagues, I am currently working on one part which is a circle with three ears. It has positional measurements, which I had difficulty with. They are marked in red in the attached photos.
As far as I understand, if the reference point is the central circle, then the controlled elements should be controlled only along the PR, but I can not understand how to represent this in Pcdmis.
I hope you can give me some tips for this.
PS
I use 2014 version PCdmis, and xact.
PPS
Datum D what is this??! Dia 100? But it's dat A in my opinion...

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MattR over 1 year ago

That's a good idea. Problem is plenty of those companies have kaizen but only on paper. Like GM in the 1980s I read about in few automotive related books. Plenty of good stuff on paper but zilch in practice on the shop floor or engineering office.
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MattR over 1 year ago

That's a good idea. Problem is plenty of those companies have kaizen but only on paper. Like GM in the 1980s I read about in few automotive related books. Plenty of good stuff on paper but zilch in practice on the shop floor or engineering office.
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