Module 4: Deriving a Logical Data Design
The logical data design is the middle stage of the natural progression from
conceptual design to physical design. The process of deriving a logical data
design from the conceptual data design accomplishes the following:
Translates conceptual data needs into real data requirements.
You must turn the conceptual data needs identified during conceptual design
into actual entities and relationships that will define how the data interacts.
Helps organize your thinking about the data.
You must ensure that the data elements identified in the conceptual design
stage accurately depict the desired data for the business solution.
Focuses on the semantic details of the data relationships.
You are forced to delve deeper into...
