Describe the workflow, not just the feature list
An app proposal needs to understand who does what, in what order and with which information. “Dashboard, login and reports” is a feature list, but says little about the real work. A useful brief follows one task from start to finish and identifies the exceptions.
Document the current process, including spreadsheets, manual approvals and duplicate entry. That baseline reveals which parts deserve automation and which require human judgment. It also gives you a way to evaluate whether the first release is useful.
Set an MVP boundary
An MVP should complete a valuable task for a defined user. It does not need every feature imagined for the eventual product. Separate launch requirements from later improvements, and identify the assumptions most likely to change after users try the system.
Pick the smallest coherent release. Removing features is sensible; removing security, error handling or a reliable recovery process is not. Prototype the risky workflow before building every screen.
- Users and permission levels
- Primary task and success criteria
- Required integrations and access
- Features deferred to later releases
Make data and integrations explicit
Record what data is collected, who can access it, retention needs and how records move between systems. Authentication and permission requirements affect architecture; they should not be added as an afterthought.
For each integration, identify an API, provider documentation, a test environment and the person responsible for credentials. Rate limits, recurring fees and third-party approval can change scope. Keep sensitive credentials out of screenshots, frontend bundles and shared briefs.
Agree on reviewable milestones
A milestone should provide something you can inspect: an approved workflow, a prototype, a tested integration or a working end-to-end task. Tie feedback to clear acceptance conditions. This is more useful than a progress percentage with no evidence.
Before launch, cover accessibility, device testing, deployment ownership, backups and operational support. Decide who responds to incidents and how future features are estimated. A custom app continues to need care after its first release.
References and further reading.
Provider capabilities and terms can change. Confirm requirements with the platform before choosing a solution.