Data Design Diagram



Definition

A data design diagram is a design diagram work product (a kind of object or entity-relationship diagram) that primarily documents the design of the data components of an application.

Objectives

The typical objectives of a data design diagram is to:

Benefits

The typical benefits of a data design diagram are to:

Contents

The typical contents of a data design diagram are:

Stakeholders

The typical stakeholders of a data design diagram are:

Phases

Preconditions

Data design diagrams can typially be started if the following preconditions hold:

Inputs

The typical inputs to a data design diagram include:

Guidelines

Conventions

Data design diagrams are typically constrained by the following conventions:

Examples

The following data design diagram is an entity-relationship-attribute (ERA) diagram of the primary data for a simple order entry application.

Example Data ERA Diagram of Primary Data Types