Data structure diagram

A data structure diagram (DSD ) is a data model for the description of conceptual schemes, the graphical notations for the representation of entities, their relationships and constraints provides.

The basic graphical elements of the data structure diagram is a rectangle with which one represents entities, and arrows for representing relationships.

Survey

The data structure diagram of is a diagram of a type that can be used to visualize the structure of the data elements in a data dictionary. The DSD is a graphical alternative to the specifications within entries in the data dictionary.

The focus of the data structure diagram is on the relationships of the elements within an entity.

Bachman notation

An alternative name for the data structure diagram Bachman Chart - a notation that has been used to model the data to a network and relational data model, the data model of the type of storage is separated in the system. The diagram is named after the database pioneer Charles Bachman and was mainly used in software design.