Non-Functional Requirements (NFR) Specification
๐ Overview
Purpose:Outline the key non-functional expectations of the system or product. These are qualities that affect how the system performs rather than what it does.
Project / System Name
[Insert name]
Author
[Insert name/team]
Date
[Insert date]
Version
[v1.0 / Draft / Final]
โ๏ธ Categories & Requirements
๐ Notes & Clarifications
[Add any team-specific constraints, dependencies, or clarifications here.]
Optional categories to consider: Accessibility, Disaster Recovery, Backup/Restore, Compatibility.
Table
Category
Requirement Description
Priority
Metric / Acceptance Criteria
Performance The system must support 10,000 concurrent users with <1s response time. High Response time < 1s for 95% of requests
Scalability Must handle 5x user growth without system redesign. Medium Autoscaling enabled, infra designed for 5x load
Availability The service should maintain 99.9% uptime monthly. High Uptime logs from monitoring system
Reliability System must gracefully handle partial failures without data loss. High Failover and retry mechanisms implemented
Security All data in transit and at rest must be encrypted. High TLS 1.2+, AES-256 encryption verified
Maintainability Code should be modular and covered with 80%+ unit test coverage. Medium Code quality metrics, test reports
Usability Users should be able to complete core workflows in under 3 steps. Medium Usability test reports
Portability The system should support deployment on AWS and GCP. Low Deployment documentation for both environments
Compliance The system must be GDPR-compliant for EU users. High Legal/privacy review passed
Localization UI must support English, Spanish, and Chinese. Medium Language toggle tested
Auditability All critical actions should be logged and traceable. Medium Log format and storage reviewed