CA Agile Requirements Designer (ARD) is a sophisticated testing tool that uses the concepts of model-based testing to provide end-to-end support for requirements gathering, test design, test creation, test automation, and more. You can read more how it works and how to get started with ARD here: https://docops.ca.com/ca-agile-requirements-designer/2-6/en/getting-started.
Can ARD be used for non-functional testing? I’m not sure exactly how this would work or if it's possible.
CA Agile Requirements Designer (ARD)- Agile Designer
To start, we can reword the question to be "Can combinatoric-based testing add value to this type of testing, and specifically, can ARD help?".
In summary, if a testing requirement in complex enough and has enough possible combinations, applying ARD will save time and increase the efficiency of testing.