The Software Development Area in the ConceptDraw Solution Park includes the Entity-Relationship Diagrams
Solution, Data Flow Diagrams Solution, IDEF0 Diagrams Solution, and the new-and-improved Rapid UML Solution.
Diagrams created by this process are called Entity-Relationship Diagrams
(ERD) (Chen, 1976).
Students are initially taught how to construct common types of diagrams used in systems analysis and design, such as various types of UML diagrams, data flow diagrams (DFD), entity-relationship diagrams
Database design using entity-relationship diagrams
, 2d ed.
Defining and validating metrics for assessing the understandability of entity-relationship diagrams
For example, flowcharts for evaluating information and internal control systems; process maps, like the one shown in exhibit 1, for showing a pictorial diagram of a business's activities and processes; data flow diagrams for designing information systems; entity-relationship diagrams
for use in modeling and depicting database designs.
Understanding relationships with attributes in entity-relationship diagrams
(ERDs) were introduced by Chen  to represent the conceptual structure of data in a database system.
The structured analysis methodology incorporates a set of representations including data flow diagrams, entity-relationship diagrams
, and structure charts  to prepare system specifications.
The entity-relationship diagrams
have been converted to today's standard practice format that is compatible with MS Visio, among other software tools.
, data flow diagrams, decomposition diagrams, activity-dependency diagrams, fact-finding techniques).
We will then illustrate the power of the formalism by briefly discussing higraph-based versions of such graphical languages as entity-relationship diagrams
, semantic and associative networks, and dataflow diagrams.