[TYPO3-mvc] mm relation with attributes

[Christian Kartnig]

Hi There!

I have a problem where I'm not sure about how to do this the right way.
I have a domain model with special fields and companies that are engaged 
in these special fields to a specific percentage.

Because I have an attribute percentage in the mm-relation between 
specialfields and companies, I modeled an 1:N N:1 relation (like in the 
example with CD - Track - Recording).

Now I want to have a form for each company where you can assign the 
percentages of special fields:

Special fields for My Company

Hardware: ..... %
Software: ..... %
Whatever: ..... %

How do I do that? Should I create a specialfieldPercentage child object 
for every special field on creation of the company and fill the 
percentage with 0? Or should I just use normal input fields not bound to 
objects and then in the controller look for percentage objects that are 
already there?

Can anyone please point me in the right direction? Any hint is greatly 
appreciated!

best regards,
Christian