Start with the decision the product supports
A product brief should begin before features, screens or technical choices. Its first job is to name a precise situation in which someone needs to make progress. Describe who is acting, what they are trying to accomplish, what makes the current path difficult, and what decision or action the software should make easier. This creates a useful boundary: the product is not a general solution to a broad category of work.
Avoid turning the problem statement into a slogan. “Help teams work better” is too open to guide design or engineering. A more useful brief identifies a moment: for example, a small operations team needs to collect a consistent set of inputs before deciding whether a request can move forward. That statement gives the team something concrete to examine while leaving room to learn about the right interface.
Include the consequence of leaving the problem unsolved, but keep it factual and proportionate. The aim is not to dramatise the opportunity; it is to establish why the problem deserves attention now. A brief can say that the current process is unclear, repetitive or difficult to review without claiming outcomes that have not been demonstrated.
- Name the intended user or role.
- Describe the triggering situation.
- State the desired action or decision.
- List the current friction in plain language.
Set a narrow outcome before listing features
Once the problem is clear, define the product outcome in terms of a changed user capability. The outcome should describe what a person can reliably do with the product, not what the team plans to build. For instance, “a user can submit a complete request and understand what happens next” is more useful than “build a request form with notifications.”
This distinction helps separate necessary work from attractive additions. Features are possible means; the outcome is the reason to choose among them. If a proposed feature does not help the named user complete the intended action, clarify the need it serves or leave it outside the first release.
A good brief also states what is deliberately out of scope. Exclusions reduce ambiguity for designers and engineers, protect a small release from expansion, and make future choices easier. They are not permanent refusals; they are commitments to solve one problem well before taking on adjacent ones.
- Primary outcome: the user capability the release should enable.
- Success signal: an observable indication that the capability is being used.
- Out of scope: adjacent needs that this release will not address.
- Open questions: assumptions that require validation before expansion.
Design the first release as a testable unit
Before design and engineering begin, describe the smallest release that can show whether the proposed path is useful. Small does not mean incomplete in every respect. It means complete enough for one defined workflow: a person can enter, review, understand and finish the task without relying on a collection of unplanned workarounds.
Write the core journey in sequence. Start with the trigger, then specify the essential user actions, the information the product must present, and the clear ending state. This is often more valuable than a long feature inventory because it exposes missing states, unclear ownership and unnecessary branching early.
The brief should distinguish essential behaviour from future flexibility. If the first release needs one input format, one permission model or one notification route, say so. A team can broaden these choices later if the problem requires it. Trying to support every variation before the central workflow is understood often makes a focused product harder to use and harder to evaluate.
- Trigger: what brings the user into the product.
- Core flow: the minimum sequence required to reach the outcome.
- Completion state: what confirms that the task is done.
- Known limits: supported cases, unsupported cases and manual steps.
Make accessibility and clarity part of the scope
Accessible interfaces belong in the product brief, not only in a later review. State the expectations that affect the core journey: understandable labels, meaningful feedback, keyboard-operable controls, sufficient visual distinction, and content that does not depend solely on colour, motion or a particular device. These are practical conditions for people to complete the intended task.
Clarity also includes the language around uncertainty. If a submission is still being processed, if an action cannot be reversed, or if information is missing, the interface should explain that plainly. The brief can identify the moments where users need confirmation, guidance or recovery rather than leaving those states implicit.
This does not require the brief to prescribe every component. It should instead set an interface standard that design and engineering can apply while making detailed decisions. The important point is that accessibility and comprehension are treated as release requirements, alongside the functional workflow.
- Use plain, specific labels for actions and statuses.
- Provide a clear response to success, delay and error states.
- Ensure the core path can be completed without a pointer device.
- Identify content or controls that need extra explanation.
Choose measures that reflect product usefulness
A product brief needs a small set of measurable outcomes so the team can decide what to improve after release. Choose measures connected to the stated user capability, such as completion of the core workflow, time taken to reach a clear next step, or the proportion of attempts that end in an understandable state. The exact measure depends on the product and should be defined without inventing a target or promising a result.
Pair each measure with a decision. If people begin but do not complete the key flow, the team may need to inspect where the journey becomes unclear. If a workflow completes but produces weak information, the next question may concern the inputs, guidance or review process. Metrics are useful when they inform a specific product choice, not when they simply decorate a brief.
Also record what the measure cannot tell you. A completion count alone may not explain why people stopped, whether the task was appropriate, or whether the interface was accessible. The brief should leave room for careful interpretation and for revisiting assumptions as the product develops.
- What is being measured?
- Why does it indicate the intended outcome?
- When will the team review it?
- What decision could the result inform?
Example: a brief for a request triage tool
Example decision aid: imagine a small team handling incoming internal requests through scattered messages. The product brief could define the problem as follows: a requester needs to provide the information required for a team to decide whether work can be accepted, without repeatedly asking what is missing. The initial audience is people submitting a request and the operators reviewing it.
The first-release outcome is that a requester can submit a complete request and receive a clear status, while an operator can review the same information in one place. The core flow is limited to creating a request, answering a short set of required prompts, submitting it, and viewing one of a few explicit statuses. Integrations, complex routing, customised fields and reporting are outside scope for this release.
Measures might include whether submitted requests contain the required information, whether the stated status is visible after submission, and where users leave the form before finishing. Accessibility requirements would include keyboard access, descriptive labels, error messages that explain how to correct an input, and status information that is not communicated by colour alone. This is not a universal template; it is a way to turn a precise problem into a bounded set of choices.
- Problem: incomplete requests make triage unclear.
- Release boundary: one submission and status workflow.
- Accessible requirement: clear labels, feedback and keyboard use.
- Review question: does the release help people complete the intended task?
Use the brief as a working agreement
A useful brief is short enough to be read and specific enough to guide trade-offs. Before work begins, ensure that product, design and engineering can point to the same problem, outcome, release boundary, accessibility expectations and measures. Where they cannot, record the uncertainty rather than hiding it behind broad language.
IVRYN is an independent product studio based in Paris. Its current portfolio includes Imryn, Datvero, Cascads, Reef, Flare, Sealed, Crucible CLUB and Victor Laybats; each has its own domain, audience and product page. That public context is a useful boundary for this advice: it is guidance for focused software work, not a claim that one brief format fits every product, market or organisation.
The studio favours clear scope, measurable usefulness and responsible automation. In practice, a product brief can reflect those principles by naming the limits of automation, keeping a release small enough to assess, and defining outcomes that are relevant to the people using the product. Treat the document as something to refine when evidence changes the understanding of the problem, while preserving the discipline of a clear initial scope.
- Keep the brief readable by the whole delivery team.
- Record assumptions and unresolved decisions explicitly.
- Revisit scope only when it serves the defined problem.
- Update measures when the product question changes.
Frequently asked questions
What is the most important part of a product brief?
The most important part is a precise problem statement that identifies who needs help, in what situation, and what action or decision the product should make easier. It gives every later scope and design choice a clear reference point.
How detailed should a product brief be before engineering starts?
A product brief should be detailed enough to define the core user journey, release boundaries, accessibility expectations, open questions and measures of usefulness. It does not need to specify every screen or technical implementation.
Should a product brief include features?
Yes, but only as a limited description of the behaviour needed for the first release. Organise features around the intended user outcome and explicitly note what is out of scope so the release remains testable.
Sources and further reading
These resources provide the wider reference frame. Product statements on this page are limited to the public information provided by IVRYN.