====== Data Transformation ====== [[public:99_annexes:annex-b-terms-and-definitions:start|Go to Terms and Definitions]] ===== Discussion ===== A Data Transformation applies one or more operations to source [[public:99_annexes:annex-b-terms-and-definitions:d:data|Data]] to produce resulting Data having a changed form, [[public:99_annexes:annex-b-terms-and-definitions:s:structure|Structure]], representation, or value. Transformation may include normalization, conversion, aggregation, filtering, enrichment, redaction, anonymization, encoding, decoding, compression, decompression, calculation, or another operation that produces distinguishable resulting Data. Data Transformation remains distinct from [[public:99_annexes:annex-b-terms-and-definitions:d:data_transfer|Data Transfer]]. Transformation changes the Data. Transfer changes the location or control boundary through which Data moves. Transformation also remains distinct from interpretation: transformation produces Data, while interpretation derives meaning or conclusions from Data. ===== Definition ===== //operation that produces data having a changed form, structure, representation, or value from source data// ===== Source ===== Dido Solutions, Inc. and Jackrabbit Consulting, Inc., derived for DIDO-TE and informed by ISO/IEC data-processing and metadata concepts ===== Note ===== A Data Transformation should preserve [[public:99_annexes:annex-b-terms-and-definitions:p:provenance|Provenance]] and [[public:99_annexes:annex-b-terms-and-definitions:t:traceability|Traceability]] from resulting Data to source Data and to the transformation rule, parameters, implementation, actor, and time when those facts are required to reproduce or evaluate the result. A reversible transformation permits recovery of the source representation from the result. An irreversible transformation does not. Reversibility does not determine whether a transformation is authorized. ===== Example ===== DIDO-TE transforms a source event stream into normalized Test Input records. The transformation record identifies the source events, mapping rules, parameter values, resulting records, and detected exceptions. ---- © 2026 Dido Solutions, Inc. and Jackrabbit Consulting, Inc.