You have a point. I do technology research, and the analogy there to "solution" is "capability" -- what "capability" does your tech offer? Are there other ways to achieve this or not? Is this a required or just a desired capability for the mission/device?

Like "solution", "capability" keeps the focus off "how does it work" and on "what problem are you solving".

Vocabulary and habits of thought that remind us of the big picture can be helpful.