Standard categorizations Nestor provides a wide choice of tools to categorize articles: For a specific article, categories are available and may be corrected in the metadata module. Category name Particularities Expertise fields Tree structure Used to categorize articles and users, to improve editors/referees matches for a given article Article types Flat list Used for workflow configuration, see article type configuration. Sections Flat list Topical issues Flat list These categories may be used in combination to: handle specific workflows (especially article types and custom fields) perform specific searches on articles display visual flags on article pages and article lists process data about your journal