Open with the reason this software should exist, not your preferred technology. What kind of user will use this, how many times a day, and what happens today? An estimator who grasps the purpose will suggest a cheaper route to it; someone handed only a feature list can only price exactly what you asked for.
Describe the scope as short scenarios: a walk through each important path. Every bit as useful, list what is out of scope. An explicit exclusion list saves more friction during acceptance than almost anything else in the document. Indicate as well which parts are firm and which are still under discussion — the difference changes the price, and pretending everything is fixed helps no one.
Write down the hard constraints. The list covers the platforms and services involved, the data you have and where it lives, security and hire offshore laravel developers compliance rules, user volumes, which devices matter and infrastructure that is already decided. Where a date is genuinely fixed, explain what drives it: a good team can often cut the right scope to protect it, but not if the date is a secret.
Say what completion means feature by feature. Clear acceptance criteria do not need special syntax: a short list describing what a user should be able to do is sufficient. That one addition compresses the sign-off process by a surprising margin and mvp software development removes most late-stage disagreement.
One last thing, say what you expect back. Require a breakdown by feature or smm services module, the assumptions behind each number, the main risks and a range rather than a single figure. Treat a wide range as useful information rather than evasion: it normally identifies the part of the brief that needs work. At that point tighten that section and ask again — the next version will be far closer to reality.
