Business App Requirements Template: Define Your Project Before You Build

Define every type of user and what they can do. Permission mistakes are expensive to fix after launch because they affect database design, API structure, and every screen in the application.

Template

For each role, document with specific examples:

What they can see. A manager sees all orders for their department. A standard user sees only their own orders. A customer sees only their own account and order history.

What they can create, edit, or delete. A standard user can create new orders but cannot delete completed ones. A manager can edit any order in their department. Only admins can delete records permanently.

What they can approve. Orders over $5,000 require manager approval. Refunds over $500 require admin approval. New user accounts require admin activation.

What they cannot access. Standard users cannot see financial reports. Customers cannot see internal notes on their account. Managers cannot modify system settings or manage users outside their department.

Real-world tip: Start with 3 to 5 roles maximum. Every additional role adds complexity to development and testing. You can always add granularity later, but over-engineering permissions upfront doubles development time for the authorization system.

Define what data your application manages. Developers use this section to design the database, which is one of the most expensive things to change after development starts.

Key Data Entities

List every major type of data your application handles. For each entity:

Entity name. Customers, Orders, Products, Invoices, Projects, Tasks.

Key fields. List the important data points. For a Customer entity: company name, primary contact name, email, phone, address, industry, account manager (internal), contract start date, contract renewal date, monthly revenue, status (active, churned, prospect).

Relationships. How entities connect. A Customer has many Orders. An Order has many Line Items. Each Line Item references one Product. A Project belongs to one Customer and has many Tasks. Draw these connections explicitly because they drive database structure.

Volume. How many records do you expect in year one? Year three? The difference between 1,000 customers and 100,000 customers affects database design, search functionality, and hosting infrastructure. Be realistic.

Retention. How long must data be kept? Financial records may require 7-year retention. Customer communication logs may have specific industry requirements. Some data may need permanent retention while operational data can be archived after 2 years.

Existing Data

If you have existing data to migrate into the new application:

What format is it in? Spreadsheets, an old database, a legacy application, paper records, or a combination. How much data? Number of records per entity type. How clean is the data? Are there duplicates, missing fields, inconsistencies, or data in the wrong fields? Data migration from dirty sources can add $2,000 to $10,000 to a project depending on volume and complexity.

These requirements describe how the application should perform, not what it does. Skipping this section is a common and costly mistake because developers will make assumptions that may not match your expectations.

Performance. Page load time under 3 seconds on standard broadband. API response time under 500 milliseconds for typical operations. Search results returned within 1 second for databases up to 100,000 records. Support for 100 concurrent users without degradation (or whatever your realistic peak load is).

Security. Encryption at rest and in transit (TLS 1.3). Role-based access control as defined in Section 2. Two-factor authentication for admin users. Session timeout after 30 minutes of inactivity. Password requirements (minimum 12 characters, complexity rules). Compliance requirements specific to your industry: HIPAA for healthcare data, SOC 2 for enterprise SaaS, PCI-DSS if handling credit card data directly.

Availability. 99.9% uptime target (8.7 hours of downtime per year maximum). Maximum planned maintenance window (e.g., 4 hours per month, scheduled during off-hours). Recovery time objective if the system goes down (e.g., restore service within 4 hours).

Accessibility. WCAG 2.1 AA compliance for public-facing applications. Screen reader compatibility. Full keyboard navigation. Color contrast ratios meeting AA standards. This is not optional for government contracts and is increasingly required by enterprise customers.

Browser and Device Support. Chrome, Firefox, Safari, Edge (current and previous major version). iOS 15+ and Android 12+ for mobile. Minimum screen width (e.g., 375px for mobile, 1024px for desktop). Specify whether offline capability is required for any functionality.

Too vague. "The system should be fast" is not a requirement. "Pages load in under 3 seconds on a 25 Mbps connection" is a requirement. "The system should be user-friendly" is a wish. "A new user can complete their first order within 5 minutes without training" is testable criteria. Every requirement should be specific enough that two different people would agree on whether it has been met.

Too detailed too early. Do not design the UI in your requirements document. Describing exact button placements, color codes, and pixel measurements constrains your design team and often leads to worse outcomes than letting them propose solutions. Describe what users need to accomplish and let your design and development team figure out how.

Missing edge cases. What happens when a user submits an empty form? What if the payment fails? What if two users edit the same record simultaneously? What if a user tries to delete a customer who has active orders? Think about what can go wrong, not just the happy path. Edge cases account for 30 to 40% of development time, and discovering them late is expensive.

No priorities. If everything is P0, nothing is. Prioritize ruthlessly. A strong MVP has 5 to 10 P0 features, not 50. Shipping a focused product in 8 weeks and iterating based on real usage data produces better results than trying to ship everything in 6 months.

Forgetting non-functional requirements. Performance, security, and accessibility are requirements, not nice-to-haves. A beautiful application that takes 8 seconds to load or crashes under 50 concurrent users fails regardless of how good the features are. Define these expectations upfront so they are built into the architecture, not bolted on at the end.

How long should a requirements document be?

For a small application with 10 to 20 features, 5 to 10 pages. For a complex application with 50+ features, 15 to 30 pages. Quality matters more than length. A concise, specific 8-page document is vastly more useful than a lengthy, vague 40-page document. Focus on clarity and testable criteria rather than exhaustive prose.

Do I need technical knowledge to write requirements?

No. Write requirements in business language. Describe what users need to do, what outcomes you expect, and what constraints exist (budget, timeline, compliance). Your development team translates business requirements into technical specifications. If you find yourself writing about "microservices architecture" or "REST API design," you are going too deep. Stay in business language.

Should I include wireframes or mockups?

If you have them, include them. They help communicate your vision faster than words. But rough sketches on paper or a whiteboard photo are just as useful as polished Figma mockups at this stage. Do not let wireframe creation delay your requirements document. Simple annotations on screenshots of similar applications ("like this, but with these changes") are highly effective.

How do I handle requirements that change during development?

Build in a change management process from the start. When a change arises: document specifically what is changing, have your development team assess the impact on timeline and budget, get written approval from the decision-maker, and update the requirements document. Some change is normal and healthy. Uncontrolled change is the number one project killer. A good development partner will have a change request process and will tell you the cost and timeline impact of each change before implementing it.

Can Running Start Digital help me write requirements?

Yes. Our discovery process helps you define and document requirements through stakeholder interviews, workflow mapping, and facilitated prioritization sessions. We produce a complete requirements document before development begins, typically in 1 to 2 weeks. This upfront investment consistently saves 30 to 40% of total project cost by preventing miscommunication and scope creep. Contact us for a discovery session.

What if I am not sure exactly what I need yet?

Start with the problem you are solving and the users you are serving. Document what you know, flag what you are uncertain about, and be honest about the gaps. A good development partner helps you fill those gaps during discovery rather than expecting a perfect specification upfront. The requirements document is a living document that gets refined through conversation, not a contract that must be perfect on the first draft.

A clear requirements document is the foundation of every successful software project. Download this template, fill it in thoroughly, and you will be ahead of 80% of businesses that start development without one. Contact Running Start Digital if you want expert guidance through the requirements process.