Open with the reason this software should exist, not a list of screens. What kind of user will use the system, with what frequency, and what does the process look like without it? A vendor who understands the goal will suggest a cheaper route to it; a team that receives only a feature list prices your assumptions along with the work.

Define what is included as short scenarios: a walk through each important path. Equally important, write down what the first release deliberately excludes. A written out-of-scope list removes more friction during acceptance than the rest of the brief combined. Indicate as well which items are decided and which are still open — estimators price uncertainty, and concealing the open questions helps no one.

List the constraints. These include systems you must integrate with, the data you have and where it lives, compliance requirements, traffic expectations, target platforms and ai development company stacks you cannot change. Where a date is genuinely fixed, explain what drives it: hire smm specialists an experienced team is usually able to rearrange the plan to hit it, but not if the date is a secret.

Say what done means for each item. Testable acceptance criteria do not need special syntax: a short list describing what must be true when the feature works will do. This single habit compresses the review at the end considerably and closes off the most common source of disputes.

One last thing, ask for a specific format. Require a breakdown by feature or offshore development rates module, the assumptions used, the main risks and an optimistic and a pessimistic figure. Read a wide range as useful information rather than evasion: it normally identifies where your description is thin. From there clarify that area and ask again — the revised figure is much more reliable.