3 Review(s)

External IdentifierAn external identifier is a unique code or reference used to distinguish an item, entity, or record across different systems, databases, or contexts. It serves as a bridge for data integration, enabling the seamless exchange and retrieval of information from disparate sources.Key Characteristics:Uniqueness: Each external identifier is distinct, ensuring that it accurately represents a specific item or entity without duplication.Standardization: Many external identifiers follow established standards or formats, making them universally recognizable. Examples include ISBN for books, UPC for products, and DOI for academic articles.Interoperability: External identifiers facilitate communication between different systems, allowing for the easy sharing of data. This is crucial in environments where multiple databases or platforms need to interact.Traceability: They enable tracking and referencing of items across various contexts, enhancing accountability and organization.Examples:ISBN (International Standard Book Number): A unique identifier for books, helping libraries, publishers, and retailers manage inventory.DOI (Digital Object Identifier): Used for academic papers and articles, ensuring consistent access to digital content.UPC (Universal Product Code): A barcode used in retail for tracking products.Applications:E-commerce: Managing inventory and sales across multiple platforms.Research: Ensuring the consistent citation and access to academic publications.Data Integration: Merging data from different sources while maintaining the integrity of each record.