The quality of an estimate depends on the quality of the information behind it. A clear brief helps development partners understand what you need, ask better questions and give you options you can compare. It does not need to be long or technical, but it should cover the right ground.
The business problem and goals
Start with why the project exists. Describe the problem in plain language, who it affects and what happens if nothing changes. Then state what success looks like, ideally in terms you can check later, such as faster turnaround, fewer manual steps or a new service customers can use. Goals help a partner suggest a simpler route to the same outcome.
Users and what they need to do
List the main types of user, such as customers, staff and administrators, and the key tasks each must be able to complete. Short user stories work well: “as a customer, I want to track my order so that I do not need to call support.” This is more useful than a long list of screens or features.
Scope: must have, nice to have, out of scope
- Must have: what the first release cannot launch without.
- Nice to have: features that add value but could follow later.
- Out of scope: things you have decided not to include, which prevents misunderstandings.
Existing systems and data
Note the tools and systems the new software must work with, such as a CRM, ERP, payment provider or existing database, and whether they offer APIs. Mention any data that needs to be moved and roughly how much. Integrations and migrations often have the biggest effect on effort, so including them early avoids surprises later.
Constraints, budget and timeline
Share anything that limits the options: required technologies, hosting preferences, security or compliance needs, accessibility requirements and key dates. A budget range, even a rough one, helps a partner propose a realistic scope instead of the most complete one. If a date is fixed, say why, so the plan can protect what matters most.
What you can leave for discovery
You do not need detailed specifications, database designs or a chosen technology stack. Those come from a discovery phase, where the team explores requirements with you, tests assumptions and agrees the approach. The brief simply gives discovery a strong starting point.
What this means for your business
A one- or two-page brief covering goals, users, scope, existing systems, constraints and open questions is usually enough to start a useful conversation. Our software project planning guide includes a checklist you can work through, and when you are ready you can request a project estimate.
