You have decided your business needs custom software. Maybe you have outgrown your spreadsheets or hit the limits of off-the-shelf tools. You know what you want the software to do, roughly. But now someone has asked you for a “brief” and you are staring at a blank document wondering where to start.
Good news: you do not need to be technical to write a great software brief. You just need to be clear about your business, your problems, and what success looks like. This guide walks you through it step by step.
What is a software brief?
A software brief is a document that explains what you need, why you need it, and what the software should do for your business. It gives the person building your software enough context to understand your world and design something that actually works for you.
It is not a technical specification. You do not need to mention databases, APIs, or programming languages. That is the developer’s job. Your job is to explain the problem and the outcome you want.
Why a good brief matters
A clear brief saves you time, money, and frustration. Without one, you end up in a cycle of misunderstandings, revisions, and features that miss the point.
Think of it like hiring a builder for your kitchen. If you say “I want a nice kitchen,” you will get something, but it probably will not be what you imagined. If you say “I need space for a family of four to eat, I cook every evening, I need lots of worktop space, and I hate cleaning grout,” the builder can design something that actually fits your life.
Software works the same way. The better you describe the problem, the better the solution.
What to include in your brief
You do not need to follow a rigid template, but covering these areas will give any developer what they need to give you an accurate picture of what is involved.
1. Your business in a nutshell
Start with a short summary of what your business does, who your customers are, and how big your team is. This context matters more than you might think. A solo consultant and a 20-person logistics company have very different needs, even if the software sounds similar on the surface.
Example: “We are a dog grooming business with three locations and eight staff. We serve about 200 regular customers and take bookings by phone and email.”
2. The problem you are trying to solve
This is the most important section. Be honest and specific about what is not working today. Describe the pain, not the solution you have already imagined.
Good problem statements:
- “We lose about two hours a day chasing appointment confirmations by text”
- “Our booking spreadsheet has crashed twice this month and we lost data both times”
- “Customers keep asking to book online and we have to tell them to phone us”
Less useful problem statements:
- “We need a booking system” (this jumps to the solution)
- “Our current process is inefficient” (too vague)
Tip: If you can quantify the problem, do it. “We lose two hours a day” is much more useful than “it takes too long.” Numbers help a developer understand the scale and prioritise what to build first.
3. Who will use the software
List every type of person who will interact with the system. This is not just your team. Think about:
- Staff who will use it daily (and their level of tech confidence)
- Managers who need reports or oversight
- Customers who might interact with it directly (booking, checking status, making payments)
- External partners (suppliers, contractors, accountants)
For each group, note what they need to do. A receptionist booking appointments has different needs from an owner reviewing monthly revenue.
4. What the software needs to do
List the core things the software should handle. Keep it in plain language. You are describing outcomes, not features.
Example for a dog grooming business:
- Customers can book appointments online
- Staff can see the day’s schedule at a glance
- Automatic text reminders go out the day before
- Owner can see revenue by location and by month
- Customer records store notes (allergies, preferences, behaviour)
You do not need to design every screen or button. Just describe what needs to happen and who needs to do it.
5. What you are using today
Mention every tool, spreadsheet, or system that the new software will replace or need to work alongside. This helps avoid surprises later.
Common examples:
- “We currently use a Google Sheet for bookings”
- “We take payments through a SumUp terminal”
- “Our accountant uses Xero and needs a monthly export”
- “We send appointment reminders manually via WhatsApp”
If there is data in your current systems that needs to move into the new software (customer records, booking history), mention that too. Data migration is a real task that needs planning.
6. Any constraints or requirements
These are the non-negotiable things. Be upfront about them early.
- Budget range. You do not need an exact number, but “under £500 a month” or “we have £5,000 to invest upfront” helps a developer tell you honestly what is realistic. If you are considering a managed software approach, mention that too.
- Timeline. Is there a deadline? A new location opening? A busy season coming up?
- Compliance. Do you handle sensitive data? Are there industry regulations you need to meet?
- Devices. Does it need to work on phones and tablets, or just desktop?
7. What success looks like
Describe the outcome you want in concrete terms. This gives the developer a target to aim for and gives you a way to measure whether the project delivered what you needed.
Examples:
- “Customers can book and pay without us being involved”
- “We save at least an hour a day on admin”
- “No more data loss from spreadsheet errors”
- “Staff can check the schedule from their phones on site”
Common mistakes to avoid
Writing a solution, not a problem. “We need a React app with a PostgreSQL database” is not a brief. That is prescribing the medicine before describing the symptoms. Focus on the problem and let the developer recommend the right approach.
Being too vague. “We want something like Uber but for dog grooming” does not give a developer enough to work with. Be specific about your business and your customers.
Leaving out the budget. Developers are not trying to charge you as much as possible. Knowing your budget helps them design a solution that fits, rather than proposing something you cannot afford. A good developer will tell you what is achievable within your budget and what might need to wait for a later phase.
Forgetting about after launch. Your brief should mention what happens once the software is live. Who manages it? Who handles bugs, updates, and hosting? If you do not plan for this upfront, you can end up with software that works on day one but slowly falls apart.
Trying to include everything at once. You do not need every feature from day one. A good developer will help you identify the minimum viable version that solves your biggest problem first, then build from there.
A simple brief template
If you want a starting point, here is a structure you can copy and fill in:
| Section | What to write |
|---|---|
| About us | What does your business do? How big is your team? Who are your customers? |
| The problem | What is not working today? What is costing you time, money, or stress? |
| Users | Who will use the software? What do they need to do? |
| Core requirements | What should the software handle? List the key outcomes. |
| Current tools | What systems do you use today? What needs to integrate or be replaced? |
| Constraints | Budget range, timeline, compliance, devices. |
| Success criteria | How will you know this project was worth it? |
You do not need to write pages. A few paragraphs under each heading is usually enough. The goal is clarity, not length.
Frequently asked questions
How long should a software brief be?
There is no fixed length. A good brief for a straightforward project might be one or two pages. Something more complex might be five. Focus on being clear and complete rather than hitting a word count.
Do I need to include wireframes or mockups?
No. If you have sketches or screenshots of how you imagine things looking, include them. They can be helpful. But they are not required. A clear description of what needs to happen is more useful than a rough drawing of a screen layout.
Should I send the same brief to multiple developers?
You can, and it is a reasonable way to compare approaches and pricing. A good brief makes this easier because everyone is quoting on the same thing. Just be transparent about the fact that you are getting multiple quotes.
What if I do not know my budget?
Be honest about that. A good developer can give you a rough idea of what things cost and help you figure out a realistic budget. What you want to avoid is pretending you have no budget constraints and then being surprised by the quote.
Can I change the brief after the project starts?
Yes, but changes cost time and money. The better your brief, the fewer changes you will need. That said, it is normal for requirements to evolve once you start seeing the software take shape. A good developer will have a process for handling change requests.
What happens after you send the brief
A good developer will not just read your brief and send you a quote. They will come back with questions. That is a positive sign. It means they are thinking about your problem properly, not just ticking boxes.
Expect a conversation where the developer:
- Checks they understand your problem correctly
- Suggests things you might not have thought of
- Identifies risks or complications
- Proposes a phased approach if the scope is large
- Gives you a realistic timeline and cost
If a developer reads your brief and immediately quotes you a fixed price with no questions, be cautious. Software development involves too many variables for that to be a reliable approach.
Ready to talk through your idea?
If you have a rough idea of what you need, even if you have not written a formal brief yet, we are happy to talk it through. Sometimes a conversation is the best way to turn a vague idea into a clear plan.
Get in touch and we can work through it together.