Rental inspection checklist coverage calculator

Calculate missing evidence by record and complete records with your own figures.

Your numbers

Use the units shown. Results update as you change valid inputs.

Use missing evidence by record and complete records to compare changes to your inputs. The method and limits below explain the scope.

Examples

Examples

Try the starting example

Assets [ID,required-check tokens,completed-check tokens]; enter JSON
[["A",["brake","wheel"],["wheel"]],["B",["cable"],["cable"]]]
Missing evidence by record (JSON)
[["A",["brake"]],["B",[]]]
Complete records (count)
1
Completion fraction
0.5

Try another scenario

Assets [ID,required-check tokens,completed-check tokens]; enter JSON
[["A",["brake","wheel"],["brake","wheel"]],["B",["cable","case"],["cable"]]]
Missing evidence by record (JSON)
[["A",[]],["B",["case"]]]
Complete records (count)
1
Completion fraction
0.5
Calculation method

Calculation method

Missing evidence by record (JSON)

For each record, ordered required tokens absent from received tokens; exact case-sensitive equality.

Complete records (count)

Count records with no missing required tokens.

Completion fraction

Complete record count/record count.

Symbols and units
a
Assets [ID,required-check tokens,completed-check tokens]; enter JSON

Use the units shown. A list keeps the order in which you enter its values. The symbol ^ means “raised to the power of”.

Assumptions & limits

Assumptions & limits

  • Checks presence of recorded user-required inspection evidence; does not certify assets safe or fit for hire. Supported limits: All numeric inputs and computed intermediates must remain finite. Supported numeric input magnitude is zero or 1e-12 through 1e12 in absolute value; reject values outside this bounded range. All lists/JSON record tables are limited to 100 records unless a stricter bound is stated; reject malformed record arity and wrong member types. Nonempty <=100 records [identifier,required token array,received token array]; required tokens unique. Document contents and validity are not inferred from recorded token presence.
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