Open with the reason this custom software development russia should exist, not a list of screens. What kind of user will use this, how often, and what does the process look like without it? An experienced team who grasps the purpose can propose a simpler way to reach it; one who only sees the requirements as given will price the list as written.
Describe the scope as user stories or golang development company scenarios: a walk through each important path. Just as important, list what is out of scope. A written out-of-scope list removes more argument at delivery time than any other single page. Mark too which parts are firm and which are still under discussion — honest teams price those differently, and hiding it only hurts you.
List the constraints. This means systems you must integrate with, existing databases and their quality, security and compliance rules, traffic expectations, swift development services supported browsers or devices and infrastructure that is already decided. If there is a hard date, say why: a good team will often resequence the work to protect it, provided they hear about it early.
Write down what completion means for the important items. Clear acceptance criteria need not use special syntax: a short list setting out what a user should be able to do will do. This single habit shortens the sign-off process dramatically and closes off the usual argument at handover.
Finally, state what you want in the response. Require a breakdown by feature or module, a written list of assumptions, whatever the team considers risky and outsource laravel development a low number and a high number. Take a broad range as useful information rather than evasion: it tells you exactly which requirement is unclear. Then tighten that section and ask again — the second estimate will be the one worth planning around.