As can be seen from the term structured data, structured data is characterized by a system of order or systematic arrangement. The terms and valences of the structured data are arranged in a table, as in a relational database.
In structured data, the corresponding states or valences are assigned to each term in columns and rows. For example, a person's name may be assigned the mobile phone number or address, or a product may be assigned the technical data.
Structured data is often used in overviews and for search algorithms on websites. This makes it easier to categorize and select products in online stores. The robots of search engines capture structured data better, which benefits search engine optimization. In contrast to structured data, unstructured data does not have a predefined arrangement.