public:99_annexes:annex-b-terms-and-definitions:c:comparability

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 +====== Comparability ======
  
 +[[public:99_annexes:annex-b-terms-and-definitions:start|Go up to Terms and Definitions]]
 +
 +===== Discussion =====
 +
 +Comparability concerns the ability to examine information, observations, interpretations, or results together under declared conditions and to meaningfully determine their similarities, differences, and relationships.
 +
 +In regulated data interpretation environments, comparable information shares a sufficiently consistent basis of meaning, scope, time, classification, calculation, provenance, and interpretive context. Common syntax or use of the same reporting format does not, by itself, establish comparability.
 +
 +Comparability depends on explicit knowledge of the conditions governing each item being compared, including:
 +
 +  * Applicable definitions
 +  * Semantic version
 +  * Reporting period
 +  * Jurisdiction
 +  * Classification rules
 +  * Calculation methods
 +  * Parameters
 +  * Provenance
 +  * Interpretive context
 +
 +Comparability may exist fully, partially, or conditionally. An architecture should therefore preserve the basis for comparison rather than treat comparability as an assumed property of data.
 +
 +===== Definition =====
 +
 +//quality permitting meaningful comparison//
 +
 +===== Source =====
 +
 +  * Federated Data Interpretation Systems Reference Architecture (FDIS-RA)
 +  * ISO/IEC 25010, Systems and Software Quality Requirements and Evaluation
 +  * Standard Business Report Model (SBRM)
 +
 +===== Note =====
 +
 +Comparability differs from equality. Two values may be unequal yet comparable when their meanings, contexts, and derivations support a valid comparison.
 +
 +Comparability also differs from interoperability. Interoperability concerns the ability of systems to exchange and use information. Comparability concerns whether the exchanged information supports a meaningful comparison.
 +
 +===== Example =====
 +
 +Two capital adequacy ratios are comparable when both use the same regulatory definition, reporting period, calculation basis, currency treatment, semantic version, and interpretive context.
 +
 +----
 +
 +<WRAP centeralign>
 +© 2026 Dido Solutions, Inc. and Jackrabbit Consulting, Inc.
 +</WRAP>