first-level classification
[/fɜːrst ˈlɛvəl ˌklæsɪfɪˈkeɪʃən/]
nounpl: first-level classifications
classificação de primeiro nível
1. The initial or primary categorization of items, concepts, or data into broad groups or categories based on fundamental characteristics
In the library system, first-level classification divides all books into major categories such as fiction and non-fiction.
No sistema de bibliotecas, a classificação de primeiro nível divide todos os livros em categorias principais como ficção e não-ficção.
2. The top tier of a hierarchical classification system that serves as the foundation for further subdivision
The first-level classification of animals distinguishes between vertebrates and invertebrates.
A classificação de primeiro nível dos animais distingue entre vertebrados e invertebrados.
3. In information science and data management, the broadest categorical division before more specific subcategories are applied
First-level classification in the database separates records by geographic region before further sorting.
A classificação de primeiro nível no banco de dados separa registros por região geográfica antes de ordenação adicional.
This term is primarily used in technical, academic, and professional contexts in both Brazil and the United States. In Brazilian libraries and information systems, first-level classification is essential for organizing large collections, while in American contexts it's frequently used in data science, computer systems, and academic taxonomy. The concept reflects the need for systematic organization in increasingly complex information environments.
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