Writing a Software Requirements Brief: What to Prepare Before You Request a Quote

Why your project's success begins before the first line of code

Most software projects that run late or over budget don't fail in the coding — they fail at the start: vague requirements and unwritten expectations. When you ask for a quote with the idea only in your head, the developer is forced either to inflate the price to hedge against the unknown, or to give you an optimistic number that explodes later with every "small request." The fix is simple and free: a written requirements brief — one or two pages that spell out what you actually want. This guide shows you how to write one, so you get sharper quotes, a calmer project, and a bill with no surprises.

What does the absence of clear requirements cost you?

• Scope creep: every "and also we want…" after work begins means extra time and cost, plus a dispute over "is this part of the agreement?"
• Rework: what isn't written gets misunderstood, so a feature is built and then redone because it isn't what you pictured.
• Quotes you can't compare: without shared requirements, each company prices "something different," so you end up comparing numbers that don't represent the same work.

Anatomy of a good requirements brief

You don't need a complex technical document — just clear answers to these sections:

Common mistakes to avoid

• "Make it like app X": a comparison clarifies the look, not the scope; specify exactly which features of that app you want.
• Everything is a priority: if everything is "essential," nothing is. Rank features into: must-have, important, later.
• Ignoring non-functional needs: performance, security, Arabic support, and target devices affect cost as much as the features themselves.
• Hiding the budget: sharing a budget range helps the developer propose the best solution within it, instead of guessing blindly.

How the brief affects your quote

The clearer your requirements, the more accurately your project can be classified. In practice, projects range from simple (limited scope), to mid-level (accounts, payment, an admin dashboard), to complex (a multi-sided platform with many integrations) — each tier with a different cost and timeline. A clear brief moves you from a "hedge number" to a price based on defined work, often lower, because the developer isn't pricing the unknown.

An hour spent writing your requirements saves you weeks of rework and numbers you never budgeted for.

A quick checklist before you send your request

• Did I write the goal and problem in two sentences?
• Did I define the users and their roles?
• Did I rank features: must-have / important / later?
• Did I list the required integrations (payment, internal systems, login)?
• Did I clarify performance, security, Arabic support, and devices?
• Did I give a budget range, a target date, and a success metric?

How Origami helps

At Origami we start every project with a discovery session that turns your idea into a clear requirements brief and an accurately priced scope before any code is written — so you know what you'll get, for how much, and when. And if you don't have written requirements, we write them with you. Our goal is for your project to start on solid ground, not on a guess.