Answer to Question #318220 in Computer Networks for lebo

Question

Give a detailed account on the relationship between logical and physical design 

Answer 1

Both the physical design and the logical design are related to each other very closely because it is impossible to design a good system without accurate and careful system analysis phase.

For example, fact finding has to be done again if software developer found that an important issue is missed during system analysis.

The logical design of the information system helps in defining the features and functions of the system and also defines the relationship among the components. "What must take place" is defined by the logical design.

Logical design is not concerned about the way in which the tasks are accomplished. The method of implementation is not addressed by the logical design.

The Physical design of the information system helps in defining the way in which tasks are accomplished. The process for storing, entering and verifying data is described by the physical design. The sorting procedures and the layout of data files and format of reports are also described by the physical design.