The short answer
Decide around your actual service
Good software requirements do not start with a feature list. They describe the problem, users, current workflows, exchanged data and measurable outcomes. For a multi-site project, separate shared needs from local variations, prioritize scenarios, and define acceptance, pilot and ownership before comparing solutions.
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Frame the need, scope and users
Summarize the context, objectives and project boundaries in a few pages: included locations, channels, retained systems, timeline, constraints and decisions required. Link every objective to a baseline and a verifiable target.
Describe real users — crew, managers, franchisees, support, finance or marketing — and their working conditions. A need observed during service, closing or an incident is more useful than a feature with no operating scenario.
Write and prioritize scenarios
Turn expectations into end-to-end workflows: sell, amend, refund, publish an item, close a till, prepare an order or open a site. Define the trigger, roles, data, expected result and exceptions.
Classify requirements as essential, important or deferrable, and explain why. Also separate the network core, local obligations and preferences. This hierarchy makes it possible to assess gaps without giving every request equal weight.
Make data, integrations and security explicit
Inventory reference data and flows: products, prices, taxes, customers, orders, payments, stock, accounting and metrics. For each interface, state source, destination, frequency, volume, identifier, validation, error handling and owner.
Add non-functional requirements: availability, response time, degraded operation, permissions, logging, backup, exit provisions, data protection and support. Request evidence or an expected test instead of a general compliance statement.
Prepare demonstrations, acceptance and the pilot
Give candidates the same scenarios, datasets and response criteria. Score native coverage, configuration, custom development, third-party dependencies and known limitations separately, then calculate the complete cost of rollout and operation.
Define acceptance before work starts: observable criteria, owners, evidence and defect handling. The pilot should represent important cases, include a fallback and produce a documented decision before wider rollout.
Compare the options
Scroll horizontally to read the full table.
| Element | Weak wording | Verifiable wording |
|---|---|---|
| Objective | Modernize the tools | Reduce a measured task within a defined scope |
| Feature | Manage orders | Expected scenario, roles, exceptions and result |
| Interface | Connect to the ERP | Data, frequency, controls and ownership specified |
| Security | Secure solution | Permissions, logs, backup and tests requested |
| Validation | Satisfactory demonstration | Agreed acceptance criteria and evidence |
Your checklist before choosing
- Describe project context, scope and exclusions.
- Link every objective to a baseline and target.
- Document users and their priority workflows.
- Separate the network core, local obligations and preferences.
- List data, interfaces, volumes and owners.
- Express security and continuity requirements through evidence.
- Define the scoring framework and expected total cost.
- Prepare acceptance, pilot, fallback and rollout decision criteria.
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