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| ====== Data Transformation ====== | ====== Data Transformation ====== |
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| [[private:99_annexes:annex-b-terms-and-definitions:start|Go to Terms and Definitions]] | [[public:99_annexes:annex-b-terms-and-definitions:start|Go to Terms and Definitions]] |
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| ===== Discussion ===== | ===== Discussion ===== |
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| A Data Transformation applies one or more operations to source [[private:99_annexes:annex-b-terms-and-definitions:d:data|Data]] to produce resulting Data having a changed form, [[private:99_annexes:annex-b-terms-and-definitions:s:structure|Structure]], representation, or value. | 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. |
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| Transformation may include normalization, conversion, aggregation, filtering, enrichment, redaction, anonymization, encoding, decoding, compression, decompression, calculation, or another operation that produces distinguishable resulting Data. | Transformation may include normalization, conversion, aggregation, filtering, enrichment, redaction, anonymization, encoding, decoding, compression, decompression, calculation, or another operation that produces distinguishable resulting Data. |
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| Data Transformation remains distinct from [[private: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. | 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. |
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| ===== Definition ===== | ===== Definition ===== |
| ===== Note ===== | ===== Note ===== |
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| A Data Transformation should preserve [[private:99_annexes:annex-b-terms-and-definitions:p:provenance|Provenance]] and [[private: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 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. |
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| 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. | 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. |