Every Number Has a Source. That is the product claim, and these answers say what it does and does not mean in practice: what a Study contains, where its evidence comes from, who signs off, and what your firm still holds years later.
The questions are grouped five ways: what the platform is, how a Study is built, what your firm owns afterwards, how client information is held, and how to start. Read the group that matches the decision in front of you rather than the page top to bottom.
Every answer links onward to the page carrying the full account. A short answer nobody can check is the thing this product exists to replace, so none of these is asked to stand on its own.
What the platform is, who it serves, and what it produces.
Where the numbers come from, and what we publish about how they are reached.
Who owns the work, and what happens to it when the relationship changes.
What a Study needs from you, who sees it, and what the record shows.
Where to look first, and what a first engagement asks of you.
Five groups of short answers can only carry a decision so far. Each one points at the page holding the full account: the six steps and the role that acts at each of them, a worked sample of the finished file, and the guide to the tax question underneath.
If a question here is close to yours but not quite it, follow the link inside the answer and read the page it names. These answers are written to hand you onward, not to settle the question by themselves.
Open an engagement and work a real file, or read the six steps first.