lähteväärtuste
Lähteväärtuste is a term used in data management to describe values that originate from a primary data source and are present in the source data as provided. The concept is part of data provenance and lineage, distinguishing source values from the values that are derived or calculated later in a data pipeline. In practice, lähteväärtuste refer to raw values taken from a source system such as a database, file, API, or sensor, before transformations, enrichments, or aggregations are applied.
The term is formed from the Finnish word lähde (source) and value, with a grammatical suffix that
In use, distinguishing lähteväärtuste from derived values supports data quality checks and lineage analysis. For example,
Implementation considerations include metadata schemas that record the source system, extraction timestamp, data type, and any