Description
Supplied nominal bench clearance only, without assistive-device fit or safety advice.
Activity and assistive-task records distinguish planned, attempted, completed, assisted, observed, and optional components. Shares depend on the selected denominator and credit policy. A supplied code, geometry, or time-budget calculation is separate from evaluating an individual's function or safe access.
Supplied nominal bench clearance only, without assistive-device fit or safety advice.
When to use this tool
Use Assistive Device Clearance Residual when you need this specific task-count, assistance-code, timing, equipment-budget, or participation-record component.
How to use the tool and how it works
- Enter opening, deviceWidth, suppliedAllowance. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read rawClearance, residual. Use the output convention below.
For nonnegative opening, deviceWidth, and suppliedAllowance return rawClearance=opening-deviceWidth and residual=rawClearance-allowance.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| opening | Opening | Required. Finite number; minimum 0. |
| deviceWidth | Device Width | Required. Finite number; minimum 0. |
| suppliedAllowance | Supplied Allowance | Required. Finite number; minimum 0. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| rawClearance | Raw Clearance | Required. Finite number. |
| residual | Signed supplied-minus-reconstructed discrepancy under the stated formula. | Required. Finite number. |
{
"input": {
"opening": 100,
"deviceWidth": 80,
"suppliedAllowance": 5
},
"output": {
"rawClearance": 20,
"residual": 15
}
}Limitations and assumptions
- All lengths need one unit. The one-dimensional allowance is caller-supplied, without turning geometry, measurement uncertainty, obstacles, individual function, or safe device access verification.
- 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 intended assessment and a complete task or access model when a local check is insufficient. Verify task definitions, credit policies, measurement units, and the context of the underlying observations.
References
Similar or alternative tools
- Assistive Switch Scan Selection Time
Selection delay from a zero-based scan target and explicit completed cycles.
- Assistive Switch Scan Wrap Token
Advance a supplied zero-based scanning index with exact signed wrap count.