Clinical System SLA Calculator accuracy and testing

Formula source

• Actual uptime = (measurement minutes - planned downtime - unplanned downtime) / measurement minutes x 100. Allowed downtime = measurement minutes x (1 - target uptime percent / 100).

Test cases

Known limitations

• This page documents the checked-in calculator logic and does not certify results for every real-world edge case.
• Use the result as a planning estimate unless the calculator page states a stricter purpose.

Assumptions

• Inputs are user-entered and processed locally in the browser.
• The calculator uses transparent deterministic formulas rather than vendor-specific risk, compliance, or availability models.
• Validate outputs against local policy, contracts, audit evidence, clinical safety requirements, and compliance obligations before taking action.

Unit handling

• Measurement Period accepts values in min.
• Planned Downtime accepts values in min.
• Unplanned Downtime accepts values in min.
• Target Uptime accepts values in %.
• Downtime Cost accepts values in $/hr.
• Actual Uptime is displayed as a percentage.
• Downtime Allowance Remaining is displayed in min.
• Estimated Unplanned Downtime Cost is displayed as currency.

Rounding rules

• Number displays use up to 2 decimal places in the calculator UI.
• Currency outputs are displayed with standard US dollar formatting.
• Percent outputs are displayed with two decimal places.
• Input precision follows configured step values where provided.

Version history

Change log