ISO 4217

Edition and Rule Basis

Record the verified edition and distinguish consulted normative provisions from public summaries.

1. Which ISO 4217 edition governs this interpretation, and what evidence establishes its status? provenance
2. Which interpretation rules were read in the specification, and which remain supported only by summaries? boundary

Authoritative List Basis

Record the source list, retrieval context and amendment coverage; SIX identifies itself as the official maintenance agency. [SIX maintenance authority](https://www.six-group.com/en/products-services/financial-information/market-reference-data/data-standards.html?printout=1)

1. Which authoritative list or amendment establishes the assignment being used? provenance
2. What evidence shows that this snapshot includes changes effective on the decision date? measurement

Syntax Versus Assignment

Record the original token, any normalization and the evidence that it matches an assignment.

1. Is the input an alphabetic code, numeric code, currency name, symbol or external alias? definition
2. After any explicitly recorded normalization, does the token match an authoritative assignment? provenance
3. Should an unassigned but syntactically plausible token be rejected or referred for alias resolution? action

Verified Code Pair

Record the list-backed alphabetic-to-numeric correspondence, retaining all three numeric positions.

1. Which alphabetic and numeric codes identify the same assignment in the selected snapshot? definition
2. Can conversion preserve leading zeros and detect a supplied pair whose components disagree? action

Assignment Purpose

Record the assigned name, list membership and documented purpose before allowing currency-like operations.

1. Does this assignment designate a currency, fund, precious metal or another documented purpose? definition
2. What authoritative wording limits its interpretation as an ordinary currency? boundary
3. Does the requested operation accommodate that role, or require a different model or explicit policy? action

Listed Entity Meaning

Record all relevant listed entities and separate those associations from independently governed monetary facts.

1. Which entities are explicitly associated with this assignment at the reference date? provenance
2. Would inferring a single country, legal-tender status or universal local acceptance exceed the list's evidence? boundary

Minor Unit Evidence

Record the documented exponent and distinguish a numeric value from an explicit non-applicable marker or missing evidence.

1. What minor-unit value is documented for this assignment in the relevant snapshot? measurement
2. Does the source specify an exponent, declare the field inapplicable or leave its meaning unresolved? definition

Scaling Preconditions

Require evidence about major-unit versus minor-unit encoding and delegate rounding or interface exceptions to the relevant model.

1. Does the receiving interface express this amount in major units, ISO minor units or another documented scale? boundary
2. Can the proposed scaling preserve the amount exactly, or does it require a separately authorized rounding rule? action
3. Which external rule governs cash rounding or permitted accounting precision for this use? provenance

Dated Assignment Change

Record what an amendment changes, when it takes effect and any unresolved precision in its timing.

1. Does the amendment change a code, name, entity association, minor-unit value or list membership? definition
2. What effective date is stated, and how does it differ from the announcement or retrieval date? measurement
3. Which dependent validations should change when the amendment becomes effective? action

Historical Record Continuity

Preserve the original designation and distinguish assignment withdrawal from conversion or legal circulation; an amendment can place a currency in the historical list while describing parallel circulation. [SIX amendment 174](https://www.six-group.com/dam/download/financial-information/data-center/iso-currrency/amendments/dl-currency-iso-amendment-174.pdf)

1. Which assignment evidence supports this designation for the record's own date? provenance
2. Would replacing the historical code change the unit of account or require an independently sourced conversion? boundary
3. Should the designation remain valid for historical interpretation while being restricted for new operational use? action

Use Eligibility

Record whether the proposed operation requires recognition, current assignment, a particular assignment role or explicit consumer support.

1. Is the task archival interpretation, display, data interchange or initiation of a new monetary operation? definition
2. Which consumer rule determines whether this recognised designation is accepted for that task? provenance
3. Given the date, assignment role and consumer rule, should the agent accept, preserve, reject or escalate it? action

Exception Resolution

Retain unresolved input and identify the evidence needed to resolve an external alias, stale list or conflicting interpretation.

1. Is the unresolved token an external convention, an assignment absent from the local snapshot or an input error? boundary
2. What authoritative update or documented external mapping would justify resolving it? provenance
3. Which operation must remain pending until that evidence is available? action

Kinds and varieties

Reported by the breadth pass; each item needs checking against its source before it becomes normative.

1. Which of these kinds and varieties hold for the sense of ISO 4217 this model covers, and on what evidence? provenance

Identifiers and schemes

Reported by the breadth pass; each item needs checking against its source before it becomes normative.

1. Which of these identifiers and schemes hold for the sense of ISO 4217 this model covers, and on what evidence? provenance

Standards and regulation

Reported by the breadth pass; each item needs checking against its source before it becomes normative.

1. Which of these standards and regulation hold for the sense of ISO 4217 this model covers, and on what evidence? provenance

Real-world use

Reported by the breadth pass; each item needs checking against its source before it becomes normative.

1. Which of these real-world use hold for the sense of ISO 4217 this model covers, and on what evidence? provenance

Typical measurements

Reported by the breadth pass; each item needs checking against its source before it becomes normative.

1. Which of these typical measurements hold for the sense of ISO 4217 this model covers, and on what evidence? provenance

Failure modes and hazards

Reported by the breadth pass; each item needs checking against its source before it becomes normative.

1. Which of these failure modes and hazards hold for the sense of ISO 4217 this model covers, and on what evidence? provenance

Regional variation

Reported by the breadth pass; each item needs checking against its source before it becomes normative.

1. Which of these regional variation hold for the sense of ISO 4217 this model covers, and on what evidence? provenance

Neighbouring kinds and how to tell them apart

Reported by the breadth pass; each item needs checking against its source before it becomes normative.

1. Which of these neighbouring kinds and how to tell them apart hold for the sense of ISO 4217 this model covers, and on what evidence? provenance