tallnummer

Tallnummer is a term used in some Scandinavian contexts to refer to a numeric identifier assigned to an item, record, or entity. The compound combines words meaning “number,” signaling its role as a digits-based code used to uniquely identify something. It is not a universal technical standard, but appears in various administrative manuals, archival catalogs, and information systems in Norway and Denmark.

Characteristics of a tallnummer typically include digits only, though some implementations use fixed length while others allow variable length. Separators such as hyphens or spaces may be used for readability. Many tallnummer systems incorporate a check digit or checksum to help detect input errors. The primary purpose is to enable unique identification, efficient data handling, and reliable cross-referencing across databases and workflows.

Applications of tallnummer span several domains. In libraries, a tallnummer can function as an accession or catalog number for items. In manufacturing and logistics, it may serve as a serial number or part code. In public administration or business IT systems, a tallnummer can identify cases, invoices, shipments, or user accounts. The exact structure and validation rules are typically defined by the organization rather than by a single international standard.

Relation to other identifiers is close to that of serial numbers, catalog numbers, or stock-keeping units (SKU). It can be distinct from phone numbers (often called telefonnummer in Scandinavian languages) even when both are numeric codes used for identification. Standards and practices for tallnumre vary by institution, with explicit definitions documented in internal data dictionaries or system specifications.