andmeväljade

Andmeväljad, or data fields in Estonian, are discrete units of information used to capture specific pieces of data about an entity within information systems. Each field has a name, a data type, and optional constraints that govern what values are allowed. In practice, andmeväljad appear in databases as columns, in forms as input controls, and in data models as attributes of entities such as persons, products, or events.

In databases and data models, fields define the structure of records. A table comprises multiple fields, each storing values of a given type, such as strings, numbers, dates, or booleans. In user interfaces, fields correspond to prompts or inputs, often with validation rules to ensure data quality, such as required flags, maximum lengths, or pattern checks.

Common data types include string, integer, floating point, date/time, boolean, and more complex structures like arrays or nested objects in modern schemas. Validation and constraints help enforce data integrity and privacy, including mandatory fields, range restrictions, format checks (for example, email patterns), and access controls.

Privacy and data minimization are central to the handling of andmeväljad. Systems should collect only necessary fields, use appropriate security measures for storage and transmission, and implement retention policies and access restrictions, especially for personally identifiable information.

Standards and interoperability efforts, such as JSON Schema, XML Schema, or database schema conventions, guide the consistent definition and validation of andmeväljad. Examples of common fields include nimi (name), e-posti aadress (email), sünniaeg (birth date), aadress (address), and telefoninumber (phone number).

See also data model, database column, form design, and JSON Schema.