Advantages of Data Dictionary. The advantages of using a data dictionary are: It is a valuable reference in any organization because it provides documentation. It improves the communication between system analyst and user by establishing consistent definitions of various items terms and procedures.What is the purpose of a data dictionary?
A data dictionary is a collection of descriptions of the data objects or items in a data model for the benefit of programmers and others who need to refer to them. A first step in analyzing a system of objects with which users interact is to identify each object and its relationship to other objects.