- State the problem
- Map behavior
- Define acceptance
- Manage decisions
What decisions should the document support?
A useful document helps the business and development team agree on what to build, estimate the work and evaluate the result. It should make scope visible enough that a new request can be recognized as a change. If the document only lists screen names, it may describe the interface without explaining the product. If it dictates implementation details before the problem is understood, it can constrain the team without improving clarity.
State the product objective and the audience in ordinary language. Explain the current problem and the outcome that would make the first release useful. Separate that outcome from a commercial forecast. For example, reducing repeated data entry is a product objective; claiming that the software will increase revenue by a particular percentage requires evidence the requirements document cannot supply.
How should you define users and permissions?
List the roles that perform different actions. A customer, field employee and administrator may interact with the same record but should not necessarily see or change the same information. Describe the permission in terms of the action and data, rather than a vague statement that administrators have full access. Include who grants, changes and removes access.
Consider how roles change over time. A departing employee, a customer who loses access and a manager who temporarily covers another team all create requirements. Recovery and reassignment deserve explicit treatment. These decisions are easier to inspect in a short role-and-action description than in a collection of screenshots that hide the rules behind the interface.
What does a complete workflow description look like?
Describe the trigger, the information available, the user action, the system response and the resulting state. Include the point at which a record becomes authoritative. A user clicking submit is not necessarily the same event as a server accepting the request. The interface should not promise completion before the relevant system has confirmed it.
Use this illustrative workflow: a staff member receives a service request, verifies the address is in the company's approved coverage, assigns an owner and sends the approved acknowledgment. The request ends in an assigned state with a next action. If the address is outside coverage, it enters a separate unsuitable state for a truthful response. This is a hypothetical requirements example, not a description of a delivered Dappr product.
How should exceptions be documented?
For each workflow, ask what happens when information is missing, an integration fails or the user repeats the action. Decide which errors the user can correct and which require staff attention. Avoid a single requirement that says the system must handle errors gracefully; it does not explain what the user sees or what the staff must do.
In the service-request example, a repeated submission should not silently create several independent work items if the business intends one request. The team must define how a possible duplicate is detected and reviewed. If the assignment service is unavailable, the record should remain identifiable for later action, and the confirmation should reflect the actual state. The exact technical solution belongs in design, but the required operating behavior belongs in the requirements.
What should acceptance criteria contain?
Acceptance criteria describe observable evidence that the requirement is satisfied. They should be specific enough that the business and team can reach the same conclusion. Avoid subjective phrases such as modern, seamless or lightning fast without a practical definition. When performance matters, agree on the task, environment and measurement instead of choosing an impressive number without context.
For the hypothetical request workflow, one criterion could state that a valid request with a supported address appears in the assigned owner's queue and displays the agreed next action. A second could state that a user without assignment permission cannot change the owner. A third could state that a failed handoff does not display a completed-assignment message. These checks assess behavior rather than dictate a particular database or framework.
How do you describe data and integrations?
Identify the records the product needs and the system responsible for each. Describe required fields, allowed values and relationships that matter to the workflow. Distinguish unknown information from a confirmed negative response. Do not include production secrets or private customer exports merely to make the document feel concrete. Synthetic examples can explain the structure without exposing people's information.
For an integration, name the business purpose, available documentation, account owner and expected direction of data flow. Explain what should happen during a timeout or rejected request. If two systems can update the same information, identify the decision needed about conflict handling. Mark unverified capabilities as questions for investigation rather than assuming that a familiar vendor provides every required API.
Which operating requirements belong in the first version?
Include the conditions that affect whether the product can be used responsibly: supported devices, accessibility expectations, recovery, monitoring and staff support. The first release can be narrow, but it still needs a defined operating boundary. A private prototype using synthetic data has different requirements from a public application holding customer records. Make that distinction explicit.
Use relevant standards as references where they fit the project. OWASP ASVS offers a framework for specifying and verifying application security controls. Referencing it is not a certification or proof that the product already meets every requirement. Decide which controls are in scope, how they will be checked and whether specialist assessment is required. Avoid copying a large standard into the brief without assigning responsibility for its actual implementation.
How should priorities and exclusions be written?
Group requirements into the first release and later candidates based on the product objective. Explain the reason for a priority. A feature may be essential because a user cannot complete the task without it, while another may improve convenience after the core workflow is reliable. An unexplained list of everything marked critical does not help the team make tradeoffs.
Write explicit exclusions where misunderstanding is likely. If the first release does not process payments, support an offline transaction or include a customer self-service area, say so. This does not mean those features can never be built. It means they are not silently included in the present estimate. Keep uncertain items in a decision log with an owner and a point at which the decision must be resolved.
How do you keep the document current?
Assign an owner and version the approved scope. When a requirement changes, record the reason and review the effect on design, testing, cost and timing. Do not let a chat comment become an untracked commitment that contradicts the document everyone else is using. At the same time, avoid a process so rigid that obvious corrections cannot be made without unnecessary delay.
Review the requirements alongside working software. A demonstration may reveal an assumption that looked reasonable in writing but does not fit the user's task. Update the document deliberately and preserve the decision history. The goal is shared understanding, not defending an early specification after new evidence shows a better way to solve the problem.
What should be ready before requesting a proposal?
Prepare the objective, user roles, core workflow, important exceptions, integrations and first-release boundary. Include existing designs and known constraints. Name the person who can approve product decisions and the staff who can explain the current process. A developer can help refine the document, but cannot replace the business's authority to decide its policies and responsibilities.
Dappr can scope custom software and mobile applications from a clear requirements brief. Bring unresolved questions as well as confirmed needs. A useful proposal should state assumptions, deliverables, acceptance checks and operating ownership. The document then becomes a practical basis for building and reviewing the product, rather than an outline that appears complete while leaving the consequential decisions for later.