To answer this question, we need to understand the different data modeling perspectives and how they relate to deriving business rules for a data model.
Option A) top-down approach - This option is correct because the top-down approach in data modeling involves starting with a high-level understanding of the business and then gradually refining the model by adding more details. In this approach, the business rules are derived from an intimate understanding of the nature of the business, rather than from specific information requirements in screens, reports, or business forms. Therefore, Option A is the correct answer.
Option B) bottom-up approach - This option is incorrect because the bottom-up approach in data modeling involves starting with specific information requirements, often derived from screens, reports, or business forms, and then building the data model from there. Business rules in this approach are derived based on the specific requirements identified. Therefore, Option B is incorrect.
Option C) overview approach - This option is incorrect because there is no specific data modeling perspective referred to as the "overview approach." This is not a commonly used term in data modeling. Therefore, Option C is incorrect.
Option D) business approach - This option is incorrect because the term "business approach" is not commonly used to describe a specific data modeling perspective. It is a broad term that can encompass various approaches or methodologies used in data modeling. Therefore, Option D is incorrect.
Option E) conceptual approach - This option is incorrect because the conceptual approach in data modeling refers to creating a high-level, abstract representation of the data model. It focuses on the concepts and relationships between them, rather than the detailed business rules. Therefore, Option E is incorrect.
The correct answer is Option A) top-down approach. This option is correct because it aligns with the perspective of deriving business rules for a data model from an intimate understanding of the nature of the business, rather than from specific information requirements in screens, reports, or business forms.