Which phrase best defines Schema definition?

Which phrase best defines Schema definition?

• A. A numeric table of data describing records
• B. A plan or outline representing system structure
• C. A textual description of the data dictionary
• D. A data format used for storage

Answer: (B)

Schema definition is essentially the plan that shows how data is organized in a system—the structure that defines what data types exist, how they relate, and what constraints apply. This fits best because a schema provides the blueprint for data architecture, not the data itself, nor just documentation, nor a storage format. A numeric table of data describes actual records, not the structure that governs them. A textual description of the data dictionary is documentation about data definitions, not the schema blueprint. A data format used for storage refers to how data is stored, not the organizational plan of the data. The schema definition, as the plan or outline of system structure, is the correct concept.

Schema definition is essentially the plan that shows how data is organized in a system—the structure that defines what data types exist, how they relate, and what constraints apply. This fits best because a schema provides the blueprint for data architecture, not the data itself, nor just documentation, nor a storage format.

A numeric table of data describes actual records, not the structure that governs them. A textual description of the data dictionary is documentation about data definitions, not the schema blueprint. A data format used for storage refers to how data is stored, not the organizational plan of the data. The schema definition, as the plan or outline of system structure, is the correct concept.