Define Quality characteristics values dependent on values of other characteristics

Summary

Define Quality characteristics values dependent on values of other characteristics

Content

Hi - In our current project, there is a requirement to have the Quality characteristics values dependent on values of other characteristics - For a simple example (but cases are really complex in nature). C=A+B so the result of C is sum of A and B where A,B,C. are all characteristics This is just an example - Formula could be too complex.  Can you please let us know if there is someway to achieve the Quality characteristics dependencies (one to another). If they are not available - any plan to introduce such in near future. Also, please advise the workaround if any.