How To Write A Project Brief That Gets You An Accurate Estimate

Start with the business problem, not a feature list. Who will use it day to day, nearshore development company how often, and how is the job done today? A vendor who grasps the purpose will suggest an alternative that costs less; one who only sees a feature list will price your assumptions along with the work.



Set out the scope as short scenarios: who does what, and what happens next. Every bit as useful, write down what is out of scope. An explicit exclusion list prevents more friction during acceptance than almost anything else in the document. Mark too which decisions are settled and which are still open — honest teams price those differently, custom python development and hiding it helps nobody.



Set out your constraints. This means the platforms and services involved, existing databases and their quality, security and compliance rules, traffic expectations, which devices matter and stacks you cannot change. If there is a hard date, say why: a team is usually able to cut the right scope to protect it, but not if the date is a secret.



Define what the word done means for the important items. Testable acceptance criteria need not use formal language: a short list stating what a user should be able to do is sufficient. This one section shortens acceptance testing dramatically and removes the most common source of disputes.



Finally, ask for a specific format. Ask for an itemised estimate, a written list of assumptions, whatever the team considers risky and a range rather than a single figure. Take a broad range as information, not evasion: it normally identifies exactly which requirement is unclear. At that point rewrite that part and ask again — the second estimate will be far closer to reality.