50 lines
1.0 KiB
Markdown
50 lines
1.0 KiB
Markdown
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# Non-functional requirements
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<!--
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Every entry needs a NUMBER or NAMED THRESHOLD. "Fast" is not an NFR;
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"p95 interaction < 100ms on mid-tier mobile" is.
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-->
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## Performance
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- <metric>: <threshold> at <load>
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- <metric>: <threshold> at <load>
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## Scale
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- Users: <expected at launch> → <year-1 target>
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- Data: <volume> at <year-1 target>
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- Throughput: <req/s, events/s, etc.>
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## Availability
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- Target uptime: <%>
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- RTO / RPO: <values, if applicable>
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## Security
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- Authentication: <method>
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- Authorization model: <roles / capabilities / none>
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- Sensitive data: <classifications>
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- Compliance frameworks in scope: <SOC2 / GDPR / HIPAA / none / TBD>
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## Accessibility
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- Standard: WCAG 2.2 AA (floor — see interaction-design.md for specifics)
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## Browser / device support
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- <list>
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## Offline behavior
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- <does the app function offline? what does it do when it can't reach the network?>
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## Data retention & deletion
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- <policy: how long, who can delete, what's the cascade>
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## Observability
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- <what we log / measure / alert on, at the requirement level>
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