What you need is an umbrella concept for the product and its needs, named for the new business and marketing view, for which the codebase is a realization of it

What you need is an umbrella concept for the product and its needs, named for the new business and marketing view, for which the codebase is a realization of it. Think of it as a set of new abstractions that wrap your product functionality. This is an unexpected application for an ontology like Webprotege. (https://webprotege.stanford.edu/ https://webprotege.stanford.edu/) Essentially, you build an ontology of needs and features and these become the new abstractions, and then reference the code bases that realize them in its nodes and attributes.