The designer maps the high-level conceptual schema onto the implementation data model at the c. Physical-design phase.

Here's a step-by-step explanation:

a. Virtual-design phase: This is not the correct answer. The virtual design phase is more about creating a virtual model of the system, not mapping the high-level conceptual schema onto the implementation data model.

b. Logical-design phase: This is not the correct answer. The logical design phase involves creating a logical model of the system, which includes defining the entities, attributes, and relationships. It does not involve mapping the high-level conceptual schema onto the implementation data model.

c. Physical-design phase: This is the correct answer. The physical design phase involves translating the logical model into a physical model, which includes mapping the high-level conceptual schema onto the implementation data model.

d. Contextual-design phase: This is not the correct answer. The contextual design phase involves understanding the context in which the system will be used, not mapping the high-level conceptual schema onto the implementation data model.

Question

The designer maps the high-level conceptual schema onto the implementation data model at the c. Physical-design phase.

Here's a step-by-step explanation:

a. Virtual-design phase: This is not the correct answer. The virtual design phase is more about creating a virtual model of the system, not mapping the high-level conceptual schema onto the implementation data model.

b. Logical-design phase: This is not the correct answer. The logical design phase involves creating a logical model of the system, which includes defining the entities, attributes, and relationships. It does not involve mapping the high-level conceptual schema onto the implementation data model.

c. Physical-design phase: This is the correct answer. The physical design phase involves translating the logical model into a physical model, which includes mapping the high-level conceptual schema onto the implementation data model.

d. Contextual-design phase: This is not the correct answer. The contextual design phase involves understanding the context in which the system will be used, not mapping the high-level conceptual schema onto the implementation data model.

Knowee AI · Accepted Answer

The designer maps the high-level conceptual schema onto the implementation data model at the c. Physical-design phase.

Here's a step-by-step explanation:

a. Virtual-design phase: This is not the correct answer. The virtual design phase is more about creating a virtual model of the system, not mapping the high-level conceptual schema onto the implementation data model.

b. Logical-design phase: This is not the correct answer. The logical design phase involves creating a logical model of the system, which includes defining the entities, attributes, and relationships. It does not involve mapping the high-level conceptual schema onto the implementation data model.

c. Physical-design phase: This is the correct answer. The physical design phase involves translating the logical model into a physical model, which includes mapping the high-level conceptual schema onto the implementation data model.

d. Contextual-design phase: This is not the correct answer. The contextual design phase involves understanding the context in which the system will be used, not mapping the high-level conceptual schema onto the implementation data model.

The designer maps the high-level conceptual schema onto the implementation data model, at the levela.Virtual-design phaseb.Logical-design phasec.Physical-design phased.Contextual-design phase

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