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Introduction
Designing a logical data model is all about preparing for the physical data design. Whether physical elements end up being a simple database, a complex data warehouse, or some other data store, the ideas behind the logical design remain the same. In this stage of development, try not to gear any design to a specific physical structure. It is important to keep in mind that we are still just planning things out, and the decisions regarding the physical elements have yet to be made.tables. The tables are often related to one another through dependencies, but this is not required. In all the time that has passed since then, the modeling of data structures has remained based on this concept.
