The design tool that identifies the characteristics of fields in each table is

Question

BlackTom AI · Accepted Answer

The task asks about identifying a tool that characterizes the attributes of fields within each table. The correct concept here is a data dictionary, which is a repository that describes the structure of data, including table names, field names, data types, allowed values, relationships, and constraints.

Since the provided answer indicates 'b. a data dictionary.', we can validate the idea that a data dictionary serves this purpose by detailing the metadata for each field: data type (e.g., integer, varchar), nullability, default values, constraints like primary keys and foreign keys, and any domain or reference information that governs how data should be stored and related.

In a database design context, this metadata repository helps designers and developers understand what data exists, how it is stored, and how different tables connect, which is essential for ensuring data integrity and proper query construction.

If there were additional options, we would compare them to see why a data dictionary uniquely fulfills the role of describing the characteristics of fields in each table. For instance, alternatives might include a data model diagram, an ER diagram, or a schema diagram; while those are related, they often illustrate structure at a higher level rather than enumerating the detailed field-level metadata that a data dictionary provides.

In summary, the data dictionary is the standard tool that identifies and documents the characteristics of fields in each table, including names, data types, constraints, and relationships, making it the appropriate choice for this question.

The design tool that identifies the characteristics of fields in each table is

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