Concept
A summary of what the solution should do
A concept is a single, plain-language description of what the solution does: not the technology, not the business case, just what a user experiences when they use it.
The concept sits between the goal and the build. It is the answer to the question: if this solution existed and worked, what would it actually do? Not how it works under the hood, and not why the organisation wants it, but what a user sees, does, and gets. One clear paragraph is usually enough.
Writing the concept forces a useful kind of honesty. If you cannot describe what the solution does in plain language, you do not know what you are building yet. The concept also reveals where the goal was fuzzier than it looked: if the solution seems to need several paragraphs to explain, the goal probably needs tightening first.
For an AI-assisted solution, the concept should say which part AI handles and which part a human still does. That distinction is easy to skip in the excitement of building, but it matters from the start.
