Universal Design Seven Principles Mace Checklist

Record independently assessed seven-principle Universal Design evidence. Center for Universal Design 1997. Unknown observations are not compliance/accessibility certification. Independently established criterion columns: equitable use, flexibility in use, simple and intuitive use, perceptible information, tolerance for error, low physical effort, size and space for approach and use. No certification or invented missing evidence.

Description

Universal Design principles provide distinct questions about equitable and usable design.

Universal Design principles provide distinct questions about equitable and usable design.^[1]

This tool records known and unknown observations across seven named criteria without certifying accessibility.

When to use Universal Design Seven Principles Mace Checklist

Use this tool to record known and unknown observations across seven named criteria without certifying accessibility.

How to use Universal Design Seven Principles Mace Checklist and how it works

Independently assess each listed feature or criterion in the fixed order; record unknown evidence with a zero known flag and a valid binary observation placeholder.
Enter observedCriterionFlags, criterionKnownFlags and run the tool.
Read result.witnessedCriteria, result.knownMissingCriteria, result.unknownCriteria using the meanings and sign conventions below.
Review missing and unknown evidence separately; resolve it through independent observation rather than treating compatible classes or placeholders as established facts.

Input field	Meaning	Value type	Requirement
observedCriterionFlags	Binary 0-or-1 observations in the fixed criterion order below.	array of number	Required; branch conditions below
criterionKnownFlags	Binary evidence-known flags in that order; 0 preserves uncertainty regardless of the observation placeholder.	array of number	Required; branch conditions below

Enter two binary arrays in the exact criterion order listed below, one observation flag and one evidence-known flag per criterion. Both arrays must have the required length; all values must be integers 0 or 1, including placeholders for unknown observations. Known=1 with observed=1 returns the criterion in witnessedCriteria; known=1 with observed=0 returns it in knownMissingCriteria; known=0 returns it in unknownCriteria regardless of the placeholder. Lists preserve fixed criterion order. The tool neither gathers evidence nor verifies the asserted observation, and unknown evidence must not be treated as a failed or passed criterion.

witnessed=labels where known=1 and observed=1; missing=labels where known=1 and observed=0; unknown=labels where known=0

Use the stated ordering, units and branch conditions.

Zero-based column	Meaning
0	equitable use
1	flexibility in use
2	simple and intuitive use
3	perceptible information
4	tolerance for error
5	low physical effort
6	size and space for approach and use

Output field	Meaning	Value type
result	Object containing the fields below.	object
result.witnessedCriteria	Known-present criteria in the fixed criterion order.	array of string
result.knownMissingCriteria	Known-absent criteria in the fixed criterion order.	array
result.unknownCriteria	Criteria whose known flag is zero, independent of placeholder value.	array

json

{
  "input": {
    "observedCriterionFlags": [
      1,
      1,
      1,
      1,
      1,
      1,
      1
    ],
    "criterionKnownFlags": [
      1,
      1,
      1,
      1,
      1,
      1,
      1
    ]
  },
  "output": {
    "result": {
      "witnessedCriteria": [
        "equitable use",
        "flexibility in use",
        "simple and intuitive use",
        "perceptible information",
        "tolerance for error",
        "low physical effort",
        "size and space for approach and use"
      ],
      "knownMissingCriteria": [],
      "unknownCriteria": []
    }
  }
}

Limitations and assumptions

The evidence annotations are supplied by the caller. Unknown observations remain unknown, and compatible readings can overlap. The tool does not analyze images or texts, collect observations, prove a theory, certify a design or determine artistic quality.

Supply explicit values and dense aligned arrays. Unexpected fields, wrong types and nonfinite scalar values are rejected; fixed-token, alignment and other branch conditions are explained above. A successful false flag, empty match list or unknown-evidence list differs from an input error. Extremely large inputs or nonrepresentable results may fail.

Alternative or Complementary methods

Use Juried Show Blind Review Selection Process Checklist for a related operation: Blind juried review depends on declared criteria, conflict handling and documented procedures.

Use Aboriginal Songline Design Permission Protocols Lookup for a related operation: Songline-related design permissions depend on specific Aboriginal communities, country and custodianship.

References

Universal Design Seven Principles Mace Checklist — tool.io

Similar or alternative tools

Juried Show Blind Review Selection Process Checklist
Blind juried review depends on declared criteria, conflict handling and documented procedures.
Aboriginal Songline Design Permission Protocols Lookup
Songline-related design permissions depend on specific Aboriginal communities, country and custodianship.