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Medical ImagingGenerated accuracy model review: 2026-05-06

Imaging Archive Retention Cost Calculator accuracy and testing

This page documents how Calwarden builds trust for this calculator: source notes, regression-style default tests, limitations, assumptions, unit handling, rounding, and visible change history.

Formula source

  • Retained studies and storage are summed across retention years with annual growth. Billable TB = retained GB / 1024 * redundancy multiplier. Annual cost = billable TB * price per TB-month * 12.

Test cases

Default input regression check

Generated from the checked-in default inputs and calculate function.

Inputs

  • Annual Studies: 120,000
  • Average Study Size: 0.45 GB
  • Retention Period: 7 years
  • Annual Study Growth: 5%
  • Redundancy Multiplier: 1.2 x
  • Storage Price: 18 $/TB-mo

Expected outputs

  • Annual Archive Cost: $111,291.08
  • Monthly Archive Cost: $9,274.26
  • Billable Storage: 515.24 TB
  • Retained Studies: 977,041.01

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

  • Study growth compounds annually.
  • Storage price is entered by the user.
  • No imaging or operational data is stored.

Unit handling

  • Annual Studies accepts numeric values.
  • Average Study Size accepts values in GB.
  • Retention Period accepts values in years.
  • Annual Study Growth accepts values in %.
  • Redundancy Multiplier accepts values in x.
  • Storage Price accepts values in $/TB-mo.
  • Annual Archive Cost is displayed as currency.
  • Monthly Archive Cost is displayed as currency.
  • Billable Storage is displayed in TB.

Rounding rules

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

Version history

1.0.0 - 2026-05-06

Generated accuracy and testing page from the current imaging-archive-retention-cost-calculator calculator definition.

Change log

2026-05-06

Published default regression test documentation and metadata fallbacks for Imaging Archive Retention Cost Calculator.

Calculator transparency

Accuracy pages are generated from checked-in calculator definitions and can be upgraded with curated review metadata over time.

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