Start With What the Developer Needs to Read, Not What the Sponsor Wants to Sign Off
When I am handed a technical project, the first question I ask is not “what does the business want?” It is “what does a developer need to read before writing a single line of code?” Those two questions produce very different documents. A standard BRD is written for the sponsor. A technical BRD is written for the team that has to build it, while remaining accountable to the business that commissioned it. Getting that balance right is the whole job.
If you are building a technical BRD right now, you need a structure that captures business intent, translates it into system behaviour, and handles the boundary between what the business owns and what the technical team owns. The sections below are what I use on software projects across health, education, and enterprise environments. They are not theoretical. They are what works when a developer says “this requirement doesn’t tell me anything” and a sponsor says “why does this document read like a spec sheet?”
The Core Structure of a Technical BRD Template
A technical BRD template has more sections than a standard business requirements document, but each one earns its place. Here is the structure I use, and why each section exists.
- Project overview and business context: This is a single page maximum that tells the reader why the project exists, what problem it solves, and what success looks like in business terms. Developers need this or they optimise for the wrong things.
- Scope statement and out-of-scope register: A clear list of what the system will and will not do, agreed in writing. I treat this as a living section because scope always shifts, and you need a record of what was deliberately excluded.
- Stakeholder and actor register: Every person or system that interacts with the solution. On a recent education sector project (Project X), this included internal coordinators, lead professionals, external providers, and automated system notifications. Missing one actor at this stage costs weeks later.
- Business requirements: What the business needs to achieve, written without technical constraints. These are the “what”, not the “how”. Numbered, testable, and traceable.
- Use cases or user stories: The scenarios through which business requirements are exercised. I use a two-column actor/system format on complex projects because it forces you to define both sides of every interaction explicitly.
- Functional requirements: The system behaviours that satisfy each business requirement. This is where you cross the bridge. Every functional requirement should trace back to at least one business requirement.
- Non-functional requirements: Performance, security, availability, compliance, and data retention. These are the requirements that projects drop until something breaks in production. Include them here, not in a separate document that nobody reads.
- Data requirements: Data inputs, outputs, validation rules, and any data migration or integration needs. On technical projects this section is often where the real complexity lives.
- Integration and interface requirements: Every external system, API, or data feed the solution touches. Include direction of data flow, frequency, and format.
- Assumptions, constraints, and dependencies: Things that are true right now but might not be. Developers need to know what you assumed about their environment.
- Open questions and decisions log: Every unresolved item, who owns it, and by when. This is the section that saves retrospectives.
How a Technical BRD Differs From a Standard BRD
The difference is not just extra sections. It is a different mindset about who the reader is and what they need to do next. This table shows the key differences in practice.
| Element | Standard BRD | Technical BRD |
|---|---|---|
| Primary audience | Business sponsor, project manager | Development team, solution architect, BA |
| Requirements language | Business outcome focused | Business outcome plus system behaviour |
| Use cases | Optional or high-level | Mandatory, actor/system format |
| Non-functional requirements | Light touch or separate document | Integrated, mandatory, measurable |
| Data requirements | Mentioned in passing | Dedicated section with validation rules |
| Integration requirements | Noted as an assumption | Specified with direction, format, frequency |
| Open questions | Resolved before sign-off | Maintained as a live log throughout development |
| Traceability | Desirable | Required, linked to test cases |
If you are working on an IT-specific project, the IT business requirements document template on this site covers some of these distinctions in more detail and is worth reading alongside this guide.
A Worked Example: Where the Use Case Format Earns Its Keep
On Project X, an allied health services management system for an education organisation (Organisation B), I was documenting a referral and triage workflow. The system had multiple actor types: coordinators who submitted service requests, a system coach who confirmed eligibility, a lead professional who triaged and allocated cases, and external providers who delivered sessions and uploaded outcomes. The billing team then used session records to generate monthly summaries filtered by service type, practitioner, and school.
I structured the use cases in a two-column actor/system format. Each row in the table showed the actor action on the left and the system response on the right. This sounds straightforward. It was not. When I presented the triage use case (which required the lead professional to classify the type of service and severity of case before approving or declining), the lead professional pushed back hard. Her position was that the classification fields I had included were too prescriptive and would constrain clinical judgement. She wanted free-text entry, not a dropdown.
This is the friction point that matters. A free-text classification field breaks the reporting and monitoring use case entirely. The manager needed to generate standard reports by service type and severity. You cannot filter or aggregate free text. I had to facilitate a session between the lead professional and the manager to surface that dependency. The resolution was a structured classification with an additional free-text notes field. Neither of them had read far enough into the document to see the conflict until I put both use cases on the table at the same time.
That experience is why I now always review the reporting use case in parallel with data-entry use cases during the drafting stage, not after sign-off. The use case template on this site gives you the format, but the discipline of cross-checking across use cases is something you have to build into your own process.
Writing Requirements That Developers Can Build From
The most common failure I see in technical BRDs written by early-career BAs is requirements that describe a user interface rather than a system behaviour. “The system shall display a dropdown list” is not a requirement. “The system shall allow the user to select a service classification from a predefined list of approved categories” is a requirement. The difference matters because the first one locks in a UI decision that belongs to the design phase, and the second one leaves the developer free to implement it appropriately.
On the same project, the triage use case required the system to verify input rules before updating the service request record. When I drilled into what “verify input rules” meant, the lead professional and the system coach had different understandings. The lead professional assumed it meant mandatory fields. The system coach assumed it also meant business rule validation, specifically that a direct service classification could only be applied if the referral included a signed consent document. That is a materially different validation rule and it needed to be explicit in the functional requirements, not buried in a use case description.
I use a simple rule when writing functional requirements for technical BRDs: if I removed this requirement, would a developer build the system differently? If the answer is no, it is not a requirement, it is a note. If the answer is yes, it stays and gets a requirement ID.
Non-Functional Requirements: The Section That Gets Cut and Causes the Most Problems
In my experience, non-functional requirements are the section that project managers want to cut to save time, and the section that causes the most post-launch issues when they do. On technical projects, I treat NFRs as non-negotiable. They belong inside the technical BRD, not in a separate document.
For a healthcare or education system handling sensitive personal data, the NFR section needs to cover at minimum: data security classification, access control model (role-based is the standard), audit logging requirements, data retention and archiving policy, system availability targets, and performance benchmarks under expected load. On Project X, the data retention requirement referenced a specific records retention schedule. That single line in the NFR section prevented a data governance dispute eight months into the project when the archiving approach came up for review.
For a broader reference on what to include in this section, the non-functional requirements template provides a solid starting checklist.
Keeping the Document Useful After Sign-Off
A technical BRD that gets signed off and then filed is a document that failed. The open questions log is the section that keeps it alive. Every time a developer hits an ambiguity in the requirements, that question goes into the log with an owner and a resolution date. Every time a decision gets made that changes the scope or behaviour of the system, it gets recorded. This is how you avoid the situation where a requirement gets reinterpreted three months into development and nobody can remember what was agreed.
I also maintain a decisions log separate from the open questions log. Decisions are closed items. They record what was decided, when, who made the call, and what the alternative was that got rejected. When a stakeholder comes back six months later and says “I thought we agreed the system would do X”, you can show them exactly when and why the decision went the other way.
The understanding that a technical BRD is a living contract between the business and the development team, not a one-time deliverable, is what separates a document that actually bridges requirements from one that just records them. Write it with the developer’s first day of build in mind, maintain it through delivery, and treat every unresolved question as a risk until it has an answer.
Frequently asked questions
What should a technical business requirements document template include?
A technical BRD template should include a project overview, scope statement, stakeholder and actor register, business requirements, use cases, functional requirements, non-functional requirements, data requirements, integration requirements, and an open questions log. Each section serves a specific audience, from the business sponsor through to the development team. The goal is a document that both sides can read and act on without asking for clarification at every step.
What is the difference between a BRD and a technical BRD?
A standard BRD is written primarily for the business sponsor and focuses on what the business needs to achieve. A technical BRD adds system behaviour, data rules, integration specifications, and non-functional requirements written in a form that a development team can build from directly. The structure is more detailed and the requirements language is more precise, but the business context must still be present throughout.
How do you write use cases in a technical BRD?
Use a two-column actor/system format where each step shows what the actor does on the left and what the system does in response on the right. Every use case should include a description, prerequisites, and any alternative flows or exception paths. Cross-check each use case against the reporting requirements to catch conflicts between data-entry design and downstream data needs before sign-off.
Where do non-functional requirements go in a technical BRD?
Non-functional requirements should be a dedicated section inside the technical BRD itself, not in a separate document. They need to cover security, access control, audit logging, data retention, availability targets, and performance benchmarks at a minimum. Keeping them in the same document ensures they are reviewed alongside the functional requirements and cannot be deferred without someone making a deliberate decision to do so.
How do you keep a technical BRD up to date during a project?
Maintain a live open questions log and a separate decisions log throughout the project. Every unresolved ambiguity goes into the open questions log with an owner and a target resolution date. Every closed decision goes into the decisions log with the rationale and the alternatives that were considered. This gives you an audit trail when requirements are challenged later in the delivery lifecycle.
Try Ash, Your Virtual BA
If you are working through a technical BRD right now, Ash can help you draft the requirements, structure your use cases, and work through the sections that typically stall early-career BAs, including non-functional requirements and data validation rules. Rather than starting from a blank template, you can work through it conversationally and get output you can take straight into your document. Try Ash Virtual BA and see how far you can get in a single session.
Further reading
- Successfully Documenting Requirements for a Project | IIBA® Business Analysis Blog
- Managing the product requirements definition process
Written by Sam Cordes, founder of the Business Analyst’s Toolkit.