Function Observation Valid Share Tool

Description

Sum scheduled duration and scheduled observed valid duration, dividing or returning zero with defined false for zero scheduled duration.

Geriatric research summaries organize supplied observations, activities, and support records. Counts and ratios describe that research data; they are not clinical scores unless an independently validated scoring method explicitly defines them.

Sum scheduled duration and scheduled observed valid duration, dividing or returning zero with defined false for zero scheduled duration.

When to use this tool

Use Function Observation Valid Share when you need a descriptive calculation on supplied geriatric research records.

How to use the tool and how it works

Enter taskDurations, scheduled, observed, valid. Keep parallel arrays aligned. Use the units and conventions below.
Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
Read scheduledDuration, validObservedDuration, share, defined. Inspect defined before interpreting the associated values.

Require aligned nonnegative taskDurations and scheduled, observed, and valid flags. Sum scheduled duration and scheduled observed valid duration, dividing or returning zero with defined false for zero scheduled duration.^[1]

Input field	Meaning and units	Accepted input
taskDurations	Task Durations	Required. Array of finite number; minimum 0; maximum items 256.
scheduled	Scheduled	Required. Array of boolean; maximum items 256.
observed	Observed	Required. Array of boolean; maximum items 256.
valid	Whether this specific check passes; not necessarily a full object-validity verdict.	Required. Array of boolean; maximum items 256.

Output field	Interpretation	Returned shape
scheduledDuration	Scheduled Duration	Required. Finite number.
validObservedDuration	Valid Observed Duration	Required. Finite number.
share	Dimensionless share on the numerator and denominator basis stated above.	Required. Finite number.
defined	Whether the stated denominator or normalization exists; inspect before interpreting a zero placeholder.	Required. Boolean.

json

{
  "input": {
    "taskDurations": [
      2,
      3,
      5
    ],
    "scheduled": [
      true,
      true,
      false
    ],
    "observed": [
      true,
      true,
      true
    ],
    "valid": [
      true,
      false,
      true
    ]
  },
  "output": {
    "scheduledDuration": 5,
    "validObservedDuration": 2,
    "share": 0.4,
    "defined": true
  }
}

Limitations and assumptions

This is duration-weighted supplied support rather than a function score; no observation quality, task suitability, or patient assessment is established.
Inputs must satisfy both the field types and the cross-field conditions above. Invalid input causes an error; a successful false flag or documented placeholder is a different result.
Numeric calculations use binary floating point unless exact decimal-integer arithmetic is explicitly stated. No hidden measurement tolerance or decimal rounding is added; nonfinite or out-of-contract results are rejected. Numeric signed-zero results are exported as zero.

Alternative or Complementary methods

Use the appropriate validated assessment and professional review when clinical interpretation is required. Check observation scope, missingness, and denominator conventions before comparing research summaries.

References

Calculation and input contract: geriatrics/function-observation-valid-share — tool.io

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